The present invention provides a electrophotographic photoreceptor, method for manufacturing the same, process cartridge and image forming apparatus. The electrophotographic photoreceptor is obtained by stacking a photosensitive layer and a surface layer in this order on a conductive substrate, wherein the photosensitive layer consists of organic materials and the surface layer contains a group 13 element in periodic table and nitrogen, and has a thickness of 0.01 to 1 [mu]m or smaller and where the center line average roughness (Ra) of the surface is 0.01 [mu]m or smaller.