172224152 has 32 divisors (see below), whose sum is σ = 326592000. Its totient is φ = 85140000.

The previous prime is 172224139. The next prime is 172224163. The reversal of 172224152 is 251422271.

172224152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172224152² = 59322317064238208, 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 in 7 ways as a sum of consecutive naturals, for example, 399377 + ... + 399807.

It is an arithmetic number, because the mean of its divisors is an integer number (10206000).

Almost surely, 2^172224152 is an apocalyptic number.

It is an amenable number.

172224152 is a deficient number, since it is larger than the sum of its proper divisors (154367848).

172224152 is a wasteful number, since it uses less digits than its factorization.

172224152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 883 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 172224152 is about 13123.4199810872. The cubic root of 172224152 is about 556.3712562824.

The spelling of 172224152 in words is "one hundred seventy-two million, two hundred twenty-four thousand, one hundred fifty-two".