317591 has 2 divisors, whose sum is σ = 317592. Its totient is φ = 317590.

The previous prime is 317587. The next prime is 317593. The reversal of 317591 is 195713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317591 - 2² = 317587 is a prime.

Together with 317593, it forms a pair of twin primes.

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 317591.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317591.

It is not a weakly prime, because it can be changed into another prime (317593) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158795 + 158796.

It is an arithmetic number, because the mean of its divisors is an integer number (158796).

2³¹⁷⁵⁹¹ is an apocalyptic number.

317591 is a deficient number, since it is larger than the sum of its proper divisors (1).

317591 is an equidigital number, since it uses as much as digits as its factorization.

317591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945, while the sum is 26.

The square root of 317591 is about 563.5521271364. The cubic root of 317591 is about 68.2269665148.

The spelling of 317591 in words is "three hundred seventeen thousand, five hundred ninety-one".