Can you get me the numbers off the engine? Here is a link to help you find them. It is very possible that the air filter is soaked especially if the mower was turned on it's side.
Briggs and Stratton Number Finder
If it was turned it is very likely that the air filter has gas in it.
Your numbers came through as X's unfortunately. The system must think it is a phone number. Please try again with a space between each number.
Thank you that worked. There is a rectangular black box on the side of your engine held on by a 5/16" nut. It should also have a flat head screwdriver slot in the nut. Unscrew this and your air it should fold down with the air filter inside it. Remove the air filter and try to start it. Do not worry about it smoking as it may be flooded, and do not prime it.
You will know if the air filter is wet instantly, Just replace it with air filter part number 495188