313279 has 4 divisors (see below), whose sum is σ = 321784. Its totient is φ = 304776.

The previous prime is 313273. The next prime is 313289. The reversal of 313279 is 972313.

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 313279 - 2⁷ = 313151 is a prime.

It is a Duffinian number.

313279 is a lucky number.

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 313279.

It is not an unprimeable number, because it can be changed into a prime (313273) 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, 4197 + ... + 4270.

It is an arithmetic number, because the mean of its divisors is an integer number (80446).

2³¹³²⁷⁹ is an apocalyptic number.

313279 is a deficient number, since it is larger than the sum of its proper divisors (8505).

313279 is an equidigital number, since it uses as much as digits as its factorization.

313279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504.

The product of its digits is 1134, while the sum is 25.

The square root of 313279 is about 559.7133194770. The cubic root of 313279 is about 67.9167811274.

Adding to 313279 its product of digits (1134), we get a palindrome (314413).

The spelling of 313279 in words is "three hundred thirteen thousand, two hundred seventy-nine".