252132178 has 4 divisors (see below), whose sum is σ = 378198270. Its totient is φ = 126066088.

The previous prime is 252132173. The next prime is 252132217. The reversal of 252132178 is 871231252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 204976489 + 47155689 = 14317^2 + 6867^2 .

It is not an unprimeable number, because it can be changed into a prime (252132173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63033043 + ... + 63033046.

Almost surely, 2^252132178 is an apocalyptic number.

252132178 is a deficient number, since it is larger than the sum of its proper divisors (126066092).

252132178 is a wasteful number, since it uses less digits than its factorization.

252132178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126066091.

The product of its digits is 6720, while the sum is 31.

The square root of 252132178 is about 15878.6705362886. The cubic root of 252132178 is about 631.7463748254.

The spelling of 252132178 in words is "two hundred fifty-two million, one hundred thirty-two thousand, one hundred seventy-eight".