13431169 has 2 divisors, whose sum is σ = 13431170. Its totient is φ = 13431168.

The previous prime is 13431161. The next prime is 13431181. The reversal of 13431169 is 96113431.

13431169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7354944 + 6076225 = 2712^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 13431169 - 2³ = 13431161 is a prime.

It is a super-2 number, since 2×13431169² = 360792601413122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13431161) 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, 6715584 + 6715585.

It is an arithmetic number, because the mean of its divisors is an integer number (6715585).

Almost surely, 2^13431169 is an apocalyptic number.

It is an amenable number.

13431169 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431169 is an equidigital number, since it uses as much as digits as its factorization.

13431169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 13431169 is about 3664.8559316841. The cubic root of 13431169 is about 237.7047925196.

The spelling of 13431169 in words is "thirteen million, four hundred thirty-one thousand, one hundred sixty-nine".