23154172 has 6 divisors (see below), whose sum is σ = 40519808. Its totient is φ = 11577084.

The previous prime is 23154161. The next prime is 23154181. The reversal of 23154172 is 27145132.

It is a happy number.

It is a super-2 number, since 2×23154172² = 1072231362011168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2894268 + ... + 2894275.

Almost surely, 2^23154172 is an apocalyptic number.

It is an amenable number.

23154172 is a deficient number, since it is larger than the sum of its proper divisors (17365636).

23154172 is a wasteful number, since it uses less digits than its factorization.

23154172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5788547 (or 5788545 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 23154172 is about 4811.8782195729. The cubic root of 23154172 is about 285.0207105089.

The spelling of 23154172 in words is "twenty-three million, one hundred fifty-four thousand, one hundred seventy-two".