This number is a prime.
The smallest prime (emirp) that is the sum of the cubes of first n idoneal numbers (1^3+2^3+3^3+...+232^3+240^3). [Bajpai]
The smallest prime (emirp) that is the sum of the cubes of
first n idoneal numbers (1^3+2^3+3^3+...+232^3+240^3). [Bajpai]