311490659 has 2 divisors, whose sum is σ = 311490660. Its totient is φ = 311490658.

The previous prime is 311490629. The next prime is 311490661. The reversal of 311490659 is 956094113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311490659 is a prime.

It is a Sophie Germain prime.

Together with 311490661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (311490629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155745329 + 155745330.

It is an arithmetic number, because the mean of its divisors is an integer number (155745330).

Almost surely, 2^311490659 is an apocalyptic number.

311490659 is a deficient number, since it is larger than the sum of its proper divisors (1).

311490659 is an equidigital number, since it uses as much as digits as its factorization.

311490659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 311490659 is about 17649.0979656185. The cubic root of 311490659 is about 677.8730100104.

The spelling of 311490659 in words is "three hundred eleven million, four hundred ninety thousand, six hundred fifty-nine".