Fait mathématique: 49123 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 49123 is an uninteresting number.
Date historique: June 29th is the day in 2009 that Yemenia Flight 626 crashes into the Indian Ocean, killing 152 people and leaving schoolgirl Bahia Bakari as the sole survivor.