172612732 has 12 divisors (see below), whose sum is σ = 307772136. Its totient is φ = 84677840.

The previous prime is 172612697. The next prime is 172612763. The reversal of 172612732 is 237216271.

It is a junction number, because it is equal to n+sod(n) for n = 172612694 and 172612703.

It is a congruent number.

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, 406894 + ... + 407317.

It is an arithmetic number, because the mean of its divisors is an integer number (25647678).

Almost surely, 2^172612732 is an apocalyptic number.

It is an amenable number.

172612732 is a deficient number, since it is larger than the sum of its proper divisors (135159404).

172612732 is a wasteful number, since it uses less digits than its factorization.

172612732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814268 (or 814266 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 172612732 is about 13138.2164695213. The cubic root of 172612732 is about 556.7893787265.

The spelling of 172612732 in words is "one hundred seventy-two million, six hundred twelve thousand, seven hundred thirty-two".