15085969 has 2 divisors, whose sum is σ = 15085970. Its totient is φ = 15085968.

The previous prime is 15085937. The next prime is 15085979. The reversal of 15085969 is 96958051.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13786369 + 1299600 = 3713^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 15085969 - 2⁵ = 15085937 is a prime.

It is a super-2 number, since 2×15085969² = 455172921337922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15085979) 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, 7542984 + 7542985.

It is an arithmetic number, because the mean of its divisors is an integer number (7542985).

Almost surely, 2^15085969 is an apocalyptic number.

It is an amenable number.

15085969 is a deficient number, since it is larger than the sum of its proper divisors (1).

15085969 is an equidigital number, since it uses as much as digits as its factorization.

15085969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 15085969 is about 3884.0660396033. The cubic root of 15085969 is about 247.0914608266.

The spelling of 15085969 in words is "fifteen million, eighty-five thousand, nine hundred sixty-nine".