172867252 has 6 divisors (see below), whose sum is σ = 302517698. Its totient is φ = 86433624.

The previous prime is 172867217. The next prime is 172867259. The reversal of 172867252 is 252768271.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 113976976 + 58890276 = 10676^2 + 7674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172867259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21608403 + ... + 21608410.

Almost surely, 2^172867252 is an apocalyptic number.

It is an amenable number.

172867252 is a deficient number, since it is larger than the sum of its proper divisors (129650446).

172867252 is a wasteful number, since it uses less digits than its factorization.

172867252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43216817 (or 43216815 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 172867252 is about 13147.8991477726. The cubic root of 172867252 is about 557.0629090254.

The spelling of 172867252 in words is "one hundred seventy-two million, eight hundred sixty-seven thousand, two hundred fifty-two".