20313179 has 4 divisors (see below), whose sum is σ = 20394360. Its totient is φ = 20232000.

The previous prime is 20313143. The next prime is 20313197. The reversal of 20313179 is 97131302.

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 20313179 - 2⁸ = 20312923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40214 + ... + 40715.

It is an arithmetic number, because the mean of its divisors is an integer number (5098590).

Almost surely, 2^20313179 is an apocalyptic number.

20313179 is a deficient number, since it is larger than the sum of its proper divisors (81181).

20313179 is an equidigital number, since it uses as much as digits as its factorization.

20313179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81180.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 20313179 is about 4507.0144219871. The cubic root of 20313179 is about 272.8512609602.

The spelling of 20313179 in words is "twenty million, three hundred thirteen thousand, one hundred seventy-nine".