23164225 has 12 divisors (see below), whose sum is σ = 32827264. Its totient is φ = 15883920.

The previous prime is 23164189. The next prime is 23164231. The reversal of 23164225 is 52246132.

It is not a de Polignac number, because 23164225 - 2¹⁵ = 23131457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23164225.

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 11 ways as a sum of consecutive naturals, for example, 66009 + ... + 66358.

Almost surely, 2^23164225 is an apocalyptic number.

23164225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23164225 is a deficient number, since it is larger than the sum of its proper divisors (9663039).

23164225 is a wasteful number, since it uses less digits than its factorization.

23164225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132384 (or 132379 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 23164225 is about 4812.9227087083. The cubic root of 23164225 is about 285.0619543161.

The spelling of 23164225 in words is "twenty-three million, one hundred sixty-four thousand, two hundred twenty-five".