311315159 has 2 divisors, whose sum is σ = 311315160. Its totient is φ = 311315158.

The previous prime is 311315129. The next prime is 311315161. The reversal of 311315159 is 951513113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311315159 is a prime.

Together with 311315161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311315129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155657579 + 155657580.

It is an arithmetic number, because the mean of its divisors is an integer number (155657580).

Almost surely, 2^311315159 is an apocalyptic number.

311315159 is a deficient number, since it is larger than the sum of its proper divisors (1).

311315159 is an equidigital number, since it uses as much as digits as its factorization.

311315159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2025, while the sum is 29.

The square root of 311315159 is about 17644.1253396137. The cubic root of 311315159 is about 677.7456770717.

The spelling of 311315159 in words is "three hundred eleven million, three hundred fifteen thousand, one hundred fifty-nine".