General fact: 15734 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 15734 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 15734 is a boring number.
Historical date: January 28th is the day in 98 that Trajan succeeded his adoptive father Nerva as Roman emperor; under his rule the Roman Empire would reach its maximum extent.