Fatto generale: 81189 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 81189 is an uninteresting number.
Trivia: 81189 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 15th is the day in 1942 that the George Cross is awarded to "to the island fortress of Malta – its people and defenders" by King George VI.