252122152 has 8 divisors (see below), whose sum is σ = 472729050. Its totient is φ = 126061072.

The previous prime is 252122149. The next prime is 252122173. The reversal of 252122152 is 251221252.

It can be written as a sum of positive squares in only one way, i.e., 250715556 + 1406596 = 15834^2 + 1186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×252122152² = 127131159058222208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15757627 + ... + 15757642.

Almost surely, 2^252122152 is an apocalyptic number.

It is an amenable number.

252122152 is a deficient number, since it is larger than the sum of its proper divisors (220606898).

252122152 is a wasteful number, since it uses less digits than its factorization.

252122152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31515275 (or 31515271 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 252122152 is about 15878.3548266185. The cubic root of 252122152 is about 631.7380009463.

The spelling of 252122152 in words is "two hundred fifty-two million, one hundred twenty-two thousand, one hundred fifty-two".