23225128 has 16 divisors (see below), whose sum is σ = 46108980. Its totient is φ = 10929408.

The previous prime is 23225123. The next prime is 23225129. The reversal of 23225128 is 82152232.

It can be written as a sum of positive squares in 2 ways, for example, as 22867524 + 357604 = 4782^2 + 598^2 .

It is not an unprimeable number, because it can be changed into a prime (23225123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85251 + ... + 85522.

Almost surely, 2^23225128 is an apocalyptic number.

It is an amenable number.

23225128 is a deficient number, since it is larger than the sum of its proper divisors (22883852).

23225128 is a wasteful number, since it uses less digits than its factorization.

23225128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170796 (or 170792 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 23225128 is about 4819.2455841138. The cubic root of 23225128 is about 285.3115624251.

The spelling of 23225128 in words is "twenty-three million, two hundred twenty-five thousand, one hundred twenty-eight".