172046372 has 6 divisors (see below), whose sum is σ = 301081158. Its totient is φ = 86023184.

The previous prime is 172046353. The next prime is 172046383. The reversal of 172046372 is 273640271.

It can be written as a sum of positive squares in only one way, i.e., 170668096 + 1378276 = 13064^2 + 1174^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21505793 + ... + 21505800.

It is an arithmetic number, because the mean of its divisors is an integer number (50180193).

Almost surely, 2^172046372 is an apocalyptic number.

It is an amenable number.

172046372 is a deficient number, since it is larger than the sum of its proper divisors (129034786).

172046372 is a wasteful number, since it uses less digits than its factorization.

172046372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43011597 (or 43011595 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 172046372 is about 13116.6448453863. The cubic root of 172046372 is about 556.1797505528.

The spelling of 172046372 in words is "one hundred seventy-two million, forty-six thousand, three hundred seventy-two".