Fait général: 81945 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 81945 is a boring number.
Culture générale: 81945 is a boring number.
Date historique: May 10th is the day in 1768 that John Wilkes is imprisoned for writing an article for The North Briton severely criticizing King George III.