Hecho general: 74181 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 74181 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 74181 is a boring number.
Fecha histórica: February 6th is the day in 1922 that the Washington Naval Treaty is signed in Washington, D.C., limiting the naval armaments of United States, Britain, Japan, France, and Italy.