315973 has 4 divisors (see below), whose sum is σ = 361120. Its totient is φ = 270828.

The previous prime is 315967. The next prime is 315977. The reversal of 315973 is 379513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315973 - 2⁹ = 315461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22563 + ... + 22576.

It is an arithmetic number, because the mean of its divisors is an integer number (90280).

2³¹⁵⁹⁷³ is an apocalyptic number.

It is an amenable number.

315973 is a deficient number, since it is larger than the sum of its proper divisors (45147).

315973 is an equidigital number, since it uses as much as digits as its factorization.

315973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45146.

The product of its digits is 2835, while the sum is 28.

The square root of 315973 is about 562.1147569669. The cubic root of 315973 is about 68.1109060988.

The spelling of 315973 in words is "three hundred fifteen thousand, nine hundred seventy-three".