79149313 has 4 divisors (see below), whose sum is σ = 79233840. Its totient is φ = 79064788.

The previous prime is 79149289. The next prime is 79149337. The reversal of 79149313 is 31394197.

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 an interprime number because it is at equal distance from previous prime (79149289) and next prime (79149337).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79149313 is a prime.

It is a super-2 number, since 2×79149313² = 12529227496743938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79149353) 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, 40843 + ... + 42736.

It is an arithmetic number, because the mean of its divisors is an integer number (19808460).

Almost surely, 2^79149313 is an apocalyptic number.

It is an amenable number.

79149313 is a deficient number, since it is larger than the sum of its proper divisors (84527).

79149313 is an equidigital number, since it uses as much as digits as its factorization.

79149313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84526.

The product of its digits is 20412, while the sum is 37.

The square root of 79149313 is about 8896.5899647000. The cubic root of 79149313 is about 429.3542009493.

The spelling of 79149313 in words is "seventy-nine million, one hundred forty-nine thousand, three hundred thirteen".