Fatto generale: 75178 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 75178 is an uninteresting number.
Trivia: 75178 is an uninteresting number.
Data storica: October 30th is the day in 1973 that the Bosporus Bridge in Istanbul, Turkey is completed, connecting the continents of Europe and Asia over the Bosporus for the first time.