315723 has 16 divisors (see below), whose sum is σ = 460800. Its totient is φ = 191520.

The previous prime is 315703. The next prime is 315739. The reversal of 315723 is 327513.

It is a happy number.

It is not a de Polignac number, because 315723 - 2⁵ = 315691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315723.

It is not an unprimeable number, because it can be changed into a prime (315703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1558 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (28800).

2³¹⁵⁷²³ is an apocalyptic number.

315723 is a deficient number, since it is larger than the sum of its proper divisors (145077).

315723 is a wasteful number, since it uses less digits than its factorization.

315723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its digits is 630, while the sum is 21.

The square root of 315723 is about 561.8923384422. The cubic root of 315723 is about 68.0929380875.

The spelling of 315723 in words is "three hundred fifteen thousand, seven hundred twenty-three".