13809179 has 2 divisors, whose sum is σ = 13809180. Its totient is φ = 13809178.

The previous prime is 13809163. The next prime is 13809209. The reversal of 13809179 is 97190831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13809179 - 2⁴ = 13809163 is a prime.

It is equal to p₈₉₈₄₉₀ and since 13809179 and 898490 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13809139) 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 as a sum of consecutive naturals, namely, 6904589 + 6904590.

It is an arithmetic number, because the mean of its divisors is an integer number (6904590).

Almost surely, 2^13809179 is an apocalyptic number.

13809179 is a deficient number, since it is larger than the sum of its proper divisors (1).

13809179 is an equidigital number, since it uses as much as digits as its factorization.

13809179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 13809179 is about 3716.0703707007. The cubic root of 13809179 is about 239.9141996540.

The spelling of 13809179 in words is "thirteen million, eight hundred nine thousand, one hundred seventy-nine".