15222875 has 16 divisors (see below), whose sum is σ = 19126848. Its totient is φ = 12096000.

The previous prime is 15222839. The next prime is 15222887. The reversal of 15222875 is 57822251.

It is a happy number.

It is not a de Polignac number, because 15222875 - 2¹⁴ = 15206491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23810 + ... + 24440.

It is an arithmetic number, because the mean of its divisors is an integer number (1195428).

Almost surely, 2^15222875 is an apocalyptic number.

15222875 is a deficient number, since it is larger than the sum of its proper divisors (3903973).

15222875 is an equidigital number, since it uses as much as digits as its factorization.

15222875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 829 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 15222875 is about 3901.6502918637. The cubic root of 15222875 is about 247.8366672967.

The spelling of 15222875 in words is "fifteen million, two hundred twenty-two thousand, eight hundred seventy-five".