Hecho general: 70181 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 70181 is a boring number.
Trivia: 70181 is an unremarkable number.
Fecha histórica: February 23rd is the day in 1954 that the first mass inoculation of children against polio with the Salk vaccine begins in Pittsburgh.