315319 has 4 divisors (see below), whose sum is σ = 322696. Its totient is φ = 307944.

The previous prime is 315313. The next prime is 315349. The reversal of 315319 is 913513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315319 - 2⁹ = 314807 is a prime.

It is a super-2 number, since 2×315319² = 198852143522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3624 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (80674).

2³¹⁵³¹⁹ is an apocalyptic number.

315319 is a deficient number, since it is larger than the sum of its proper divisors (7377).

315319 is an equidigital number, since it uses as much as digits as its factorization.

315319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7376.

The product of its digits is 405, while the sum is 22.

The square root of 315319 is about 561.5327238906. The cubic root of 315319 is about 68.0638817215.

The spelling of 315319 in words is "three hundred fifteen thousand, three hundred nineteen".