313913 has 4 divisors (see below), whose sum is σ = 320640. Its totient is φ = 307188.

The previous prime is 313909. The next prime is 313921. The reversal of 313913 is 319313.

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 313913 - 2² = 313909 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313913.

It is not an unprimeable number, because it can be changed into a prime (313933) 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, 3293 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (80160).

2³¹³⁹¹³ is an apocalyptic number.

It is an amenable number.

313913 is a deficient number, since it is larger than the sum of its proper divisors (6727).

313913 is an equidigital number, since it uses as much as digits as its factorization.

313913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726.

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

The square root of 313913 is about 560.2793945881. The cubic root of 313913 is about 67.9625659014.

The spelling of 313913 in words is "three hundred thirteen thousand, nine hundred thirteen".