315080251 has 2 divisors, whose sum is σ = 315080252. Its totient is φ = 315080250.

The previous prime is 315080239. The next prime is 315080257. The reversal of 315080251 is 152080513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315080251 - 2⁵ = 315080219 is a prime.

It is the 17751-st Hogben number.

It is not a weakly prime, because it can be changed into another prime (315080257) by changing a digit.

It is a nontrivial repunit in base 17750.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157540125 + 157540126.

It is an arithmetic number, because the mean of its divisors is an integer number (157540126).

Almost surely, 2^315080251 is an apocalyptic number.

315080251 is a deficient number, since it is larger than the sum of its proper divisors (1).

315080251 is an equidigital number, since it uses as much as digits as its factorization.

315080251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 315080251 is about 17750.5000211262. The cubic root of 315080251 is about 680.4669881914.

The spelling of 315080251 in words is "three hundred fifteen million, eighty thousand, two hundred fifty-one".