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Abstract: We present the results of the analysis of the first 9 months of data of the Swift BAT survey of AGN in the 14-195 keV band. Using archival X-ray data or follow-up Swift XRT observations, we have identified 129 (103 AGN) of 130 objects detected at |b|> 15 deg and with significance >4.8 sigma. One source remains unidentified. These same X-ray data have allowed measurement of the X-ray properties of the objects. We fit a power law to the log N-log S distribution, and find the slope to be 1.42+/-0.14. Characterizing the differential luminosity function data as a broken power law, we find a break luminosity log L*(erg/s)=43.85+/-0.26, a low luminosity power law slope a=0.84{+0.16/-0.22},and a high luminosity power law slope b=2.55{+0.43/-0.30}, similar to the values that have been reported based on INTEGRAL data. We obtain a mean photon index 1.98 in the 14-195 keV band, with an rms spread of 0.27. Integration of our luminosity function gives a local volume density of AGN above 10^{41} erg/s of 2.4 x 10^{-3} Mpc^{-3}, which is about 10% of the total luminous local galaxy density above M*=-19.75. We have obtained X-ray spectra from the literature and from Swift XRT follow-up observations. These show that the distribution of log n_H is essentially flat from n_H=10^{20} cm^{-2} to 10^{24} cm^{-2}, with 50% of the objects having column densities of less than 10^{22} cm^{-2}. BAT Seyfert galaxies have a median redshift of 0.3, a maximum log luminosity of 45.1, and approximately half have log n_H > 22.