Hecho matemático: 2158 is a number n for which n^{2}+1 is 6 times another square.
Trivia: 2158 is a boring number.
Fecha histórica: November 27th is the day in 1989 that Avianca Flight 203, a Boeing 727, explodes in mid-air over Colombia, killing all 107 people on board and three people on the ground.