13158169 has 2 divisors, whose sum is σ = 13158170. Its totient is φ = 13158168.

The previous prime is 13158149. The next prime is 13158193. The reversal of 13158169 is 96185131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12866569 + 291600 = 3587^2 + 540^2 .

It is a cyclic number.

It is not a de Polignac number, because 13158169 - 2⁵ = 13158137 is a prime.

It is a super-2 number, since 2×13158169² = 346274822865122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13158149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6579084 + 6579085.

It is an arithmetic number, because the mean of its divisors is an integer number (6579085).

Almost surely, 2^13158169 is an apocalyptic number.

It is an amenable number.

13158169 is a deficient number, since it is larger than the sum of its proper divisors (1).

13158169 is an equidigital number, since it uses as much as digits as its factorization.

13158169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 34.

The square root of 13158169 is about 3627.4190549205. The cubic root of 13158169 is about 236.0832381379.

The spelling of 13158169 in words is "thirteen million, one hundred fifty-eight thousand, one hundred sixty-nine".