Fatto generale: 45947 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 45947 is a boring number.
Trivia: 45947 is an uninteresting number.
Data storica: October 18th is the day in 1968 that the U.S. Olympic Committee suspends Tommie Smith and John Carlos for giving a "black power" salute during a victory ceremony at the Mexico City games.