313019979 has 4 divisors (see below), whose sum is σ = 417359976. Its totient is φ = 208679984.

The previous prime is 313019933. The next prime is 313019981. The reversal of 313019979 is 979910313.

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 313019979 - 2⁹ = 313019467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313019979.

It is not an unprimeable number, because it can be changed into a prime (313019909) 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, 52169994 + ... + 52169999.

It is an arithmetic number, because the mean of its divisors is an integer number (104339994).

Almost surely, 2^313019979 is an apocalyptic number.

313019979 is a deficient number, since it is larger than the sum of its proper divisors (104339997).

313019979 is a wasteful number, since it uses less digits than its factorization.

313019979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104339996.

The product of its (nonzero) digits is 45927, while the sum is 42.

The square root of 313019979 is about 17692.3706438679. The cubic root of 313019979 is about 678.9805796243.

The spelling of 313019979 in words is "three hundred thirteen million, nineteen thousand, nine hundred seventy-nine".