931313 has 2 divisors, whose sum is σ = 931314. Its totient is φ = 931312.

The previous prime is 931309. The next prime is 931319. The reversal of 931313 is 313139.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 908209 + 23104 = 953^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 931313 - 2² = 931309 is a prime.

It is not a weakly prime, because it can be changed into another prime (931319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465656 + 465657.

It is an arithmetic number, because the mean of its divisors is an integer number (465657).

2⁹³¹³¹³ is an apocalyptic number.

It is an amenable number.

931313 is a deficient number, since it is larger than the sum of its proper divisors (1).

931313 is an equidigital number, since it uses as much as digits as its factorization.

931313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243, while the sum is 20.

The square root of 931313 is about 965.0455947778. The cubic root of 931313 is about 97.6559153418.

The spelling of 931313 in words is "nine hundred thirty-one thousand, three hundred thirteen".