1489

This number is a prime.

The smallest prime number formed by the concatenation of four distinct powerful numbers. [Cuenta]

The smallest distinct-digit prime formed from a Pythagorean quadruple (1- 4 - 8 - 9), i.e., 1^2 + 4^2 + 8^2 = 9^2. [Loungrides]

The year German mathematician Johannes Widmann published the first printed reference to use the + and - symbols in his arithmetic book, Mercantile Arithmetic (Behende und hüpsche Rechenung). [Ely]