Fatto matematico: 1137 is the maximum value of n so that there exist 7 denominations of stamps so that every postage from 1 to n can be paid for with at most 7 stamps.
Trivia: 1137 is an unremarkable number.
Data storica: February 10th is the day in 1840 that Queen Victoria of the United Kingdom marries Prince Albert of Saxe-Coburg-Gotha.