173212272 has 30 divisors (see below), whose sum is σ = 484754192. Its totient is φ = 57737376.

The previous prime is 173212211. The next prime is 173212301. The reversal of 173212272 is 272212371.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 601288 + ... + 601575.

Almost surely, 2^173212272 is an apocalyptic number.

173212272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173212272 is an abundant number, since it is smaller than the sum of its proper divisors (311541920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173212272 is a wasteful number, since it uses less digits than its factorization.

173212272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202877 (or 1202868 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 173212272 is about 13161.0133348462. The cubic root of 173212272 is about 557.4332705160.

Subtracting 173212272 from its reverse (272212371), we obtain a palindrome (99000099).

The spelling of 173212272 in words is "one hundred seventy-three million, two hundred twelve thousand, two hundred seventy-two".