315076231 has 2 divisors, whose sum is σ = 315076232. Its totient is φ = 315076230.

The previous prime is 315076211. The next prime is 315076243. The reversal of 315076231 is 132670513.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315076231 is a prime.

It is a super-2 number, since 2×315076231² = 198546062682330722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315076231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315076211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157538115 + 157538116.

It is an arithmetic number, because the mean of its divisors is an integer number (157538116).

Almost surely, 2^315076231 is an apocalyptic number.

315076231 is a deficient number, since it is larger than the sum of its proper divisors (1).

315076231 is an equidigital number, since it uses as much as digits as its factorization.

315076231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 315076231 is about 17750.3867845182. The cubic root of 315076231 is about 680.4640942314.

The spelling of 315076231 in words is "three hundred fifteen million, seventy-six thousand, two hundred thirty-one".