317256 has 16 divisors (see below), whose sum is σ = 793200. Its totient is φ = 105744.

The previous prime is 317227. The next prime is 317257. The reversal of 317256 is 652713.

317256 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 13219 = 317256 / (3 + 1 + 7 + 2 + 5 + 6).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317256.

It is not an unprimeable number, because it can be changed into a prime (317257) by changing a digit.

317256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6586 + ... + 6633.

It is an arithmetic number, because the mean of its divisors is an integer number (49575).

2³¹⁷²⁵⁶ is an apocalyptic number.

It is an amenable number.

317256 is an abundant number, since it is smaller than the sum of its proper divisors (475944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317256 is a wasteful number, since it uses less digits than its factorization.

317256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13228 (or 13224 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 317256 is about 563.2548268768. The cubic root of 317256 is about 68.2029691148.

Adding to 317256 its reverse (652713), we get a palindrome (969969).

The spelling of 317256 in words is "three hundred seventeen thousand, two hundred fifty-six".