313431 has 8 divisors (see below), whose sum is σ = 420864. Its totient is φ = 207480.

The previous prime is 313409. The next prime is 313471. The reversal of 313431 is 134313.

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

It is not a de Polignac number, because 313431 - 2⁵ = 313399 is a prime.

It is a super-2 number, since 2×313431² = 196477983522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313431.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313431.

It is not an unprimeable number, because it can be changed into a prime (313471) 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, 300 + ... + 846.

It is an arithmetic number, because the mean of its divisors is an integer number (52608).

2³¹³⁴³¹ is an apocalyptic number.

313431 is a deficient number, since it is larger than the sum of its proper divisors (107433).

313431 is a wasteful number, since it uses less digits than its factorization.

313431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its digits is 108, while the sum is 15.

The square root of 313431 is about 559.8490868082. The cubic root of 313431 is about 67.9277635441.

Adding to 313431 its reverse (134313), we get a palindrome (447744).

The spelling of 313431 in words is "three hundred thirteen thousand, four hundred thirty-one".