172270972 has 12 divisors (see below), whose sum is σ = 301569016. Its totient is φ = 86108400.

The previous prime is 172270949. The next prime is 172270997. The reversal of 172270972 is 279072271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16183 + ... + 24625.

Almost surely, 2^172270972 is an apocalyptic number.

It is an amenable number.

172270972 is a deficient number, since it is larger than the sum of its proper divisors (129298044).

172270972 is a wasteful number, since it uses less digits than its factorization.

172270972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548 (or 13546 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 172270972 is about 13125.2036936575. The cubic root of 172270972 is about 556.4216691537.

The spelling of 172270972 in words is "one hundred seventy-two million, two hundred seventy thousand, nine hundred seventy-two".