172747252 has 12 divisors (see below), whose sum is σ = 312059776. Its totient is φ = 83587320.

The previous prime is 172747249. The next prime is 172747271. The reversal of 172747252 is 252747271.

It is a super-2 number, since 2×172747252² = 59683226147103008, which contains 22 as substring.

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, 696438 + ... + 696685.

Almost surely, 2^172747252 is an apocalyptic number.

It is an amenable number.

172747252 is a deficient number, since it is larger than the sum of its proper divisors (139312524).

172747252 is a wasteful number, since it uses less digits than its factorization.

172747252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393158 (or 1393156 counting only the distinct ones).

The product of its digits is 54880, while the sum is 37.

The square root of 172747252 is about 13143.3348888324. The cubic root of 172747252 is about 556.9339796066.

The spelling of 172747252 in words is "one hundred seventy-two million, seven hundred forty-seven thousand, two hundred fifty-two".