Fait général: 1506 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1506 is the sum of its proper divisors that contain the digit 5.
Culture générale: 1506 is a boring number.
Date historique: February 14th is the day in 1014 that Pope Benedict VIII crowns Henry of Bavaria, King of Germany and of Italy, as Holy Roman Emperor.