1293

1293 = 3 x 431.

The sum of the divisors of 1293 is a cube: 1 + 3 + 431 + 1293 = 1728 = 12³.

1293 is a divisor of 26¹⁰ - 1.

1293 is a structured truncated tetrahedral number.

1293³ = 2161700757 is the sum of three consecutive primes: 2161700757 = 720566909 + 720566921 + 720566927.

Southern Pacific 1293 is a retired switch engine built in 1924 and now on display in Tracy, California.

Source: What's Special About This Number?