315256 has 16 divisors (see below), whose sum is σ = 597240. Its totient is φ = 156000.

The previous prime is 315251. The next prime is 315257. The reversal of 315256 is 652513.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315251) by changing a digit.

315256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131 + ... + 1381.

2³¹⁵²⁵⁶ is an apocalyptic number.

It is an amenable number.

315256 is a deficient number, since it is larger than the sum of its proper divisors (281984).

315256 is a wasteful number, since it uses less digits than its factorization.

315256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 410 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 315256 is about 561.4766246247. The cubic root of 315256 is about 68.0593484180.

Adding to 315256 its reverse (652513), we get a palindrome (967769).

The spelling of 315256 in words is "three hundred fifteen thousand, two hundred fifty-six".