15225969 has 8 divisors (see below), whose sum is σ = 22146912. Its totient is φ = 9227840.

The previous prime is 15225943. The next prime is 15225983. The reversal of 15225969 is 96952251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15225969 - 2⁸ = 15225713 is a prime.

It is a super-2 number, since 2×15225969² = 463660263977922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15225989) 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 in 7 ways as a sum of consecutive naturals, for example, 230664 + ... + 230729.

It is an arithmetic number, because the mean of its divisors is an integer number (2768364).

Almost surely, 2^15225969 is an apocalyptic number.

It is an amenable number.

15225969 is a deficient number, since it is larger than the sum of its proper divisors (6920943).

15225969 is a wasteful number, since it uses less digits than its factorization.

15225969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461407.

The product of its digits is 48600, while the sum is 39.

The square root of 15225969 is about 3902.0467706064. The cubic root of 15225969 is about 247.8534568257.

The spelling of 15225969 in words is "fifteen million, two hundred twenty-five thousand, nine hundred sixty-nine".