316931 has 8 divisors (see below), whose sum is σ = 340704. Its totient is φ = 293760.

The previous prime is 316919. The next prime is 316937. The reversal of 316931 is 139613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316931 - 2¹⁰ = 315907 is a prime.

It is a super-2 number, since 2×316931² = 200890517522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 7 and base 12.

It is a junction number, because it is equal to n+sod(n) for n = 316897 and 316906.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316931.

It is not an unprimeable number, because it can be changed into a prime (316937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661 + ... + 1841.

It is an arithmetic number, because the mean of its divisors is an integer number (42588).

2³¹⁶⁹³¹ is an apocalyptic number.

316931 is a deficient number, since it is larger than the sum of its proper divisors (23773).

316931 is a wasteful number, since it uses less digits than its factorization.

316931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 486, while the sum is 23.

The square root of 316931 is about 562.9662512087. The cubic root of 316931 is about 68.1796719055.

The spelling of 316931 in words is "three hundred sixteen thousand, nine hundred thirty-one".