Fatto generale: 43135 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 43135 is a boring number.
Trivia: 43135 is a boring number.
Data storica: February 5th is the day in 1913 that Greek military aviators, Michael Moutoussis and Aristeidis Moraitinis perform the first naval air mission in history, with a Farman MF.7 hydroplane.