172970012 has 12 divisors (see below), whose sum is σ = 305818800. Its totient is φ = 85593216.

The previous prime is 172970009. The next prime is 172970033. The reversal of 172970012 is 210079271.

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, 222512 + ... + 223287.

It is an arithmetic number, because the mean of its divisors is an integer number (25484900).

Almost surely, 2^172970012 is an apocalyptic number.

It is an amenable number.

172970012 is a deficient number, since it is larger than the sum of its proper divisors (132848788).

172970012 is a wasteful number, since it uses less digits than its factorization.

172970012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445900 (or 445898 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 172970012 is about 13151.8064158503. The cubic root of 172970012 is about 557.1732681688.

The spelling of 172970012 in words is "one hundred seventy-two million, nine hundred seventy thousand, twelve".