172523044 has 12 divisors (see below), whose sum is σ = 305737600. Its totient is φ = 85169448.

The previous prime is 172523033. The next prime is 172523051. The reversal of 172523044 is 440325271.

It is a super-2 number, since 2×172523044² = 59528401422051872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272664 + ... + 273295.

Almost surely, 2^172523044 is an apocalyptic number.

It is an amenable number.

172523044 is a deficient number, since it is larger than the sum of its proper divisors (133214556).

172523044 is a wasteful number, since it uses less digits than its factorization.

172523044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546042 (or 546040 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 172523044 is about 13134.8027773545. The cubic root of 172523044 is about 556.6929277932.

The spelling of 172523044 in words is "one hundred seventy-two million, five hundred twenty-three thousand, forty-four".