252151168 has 32 divisors (see below), whose sum is σ = 503082360. Its totient is φ = 125887488.

The previous prime is 252151111. The next prime is 252151177. The reversal of 252151168 is 861151252.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 131271 + ... + 133177.

Almost surely, 2^252151168 is an apocalyptic number.

It is an amenable number.

252151168 is a deficient number, since it is larger than the sum of its proper divisors (250931192).

252151168 is a wasteful number, since it uses less digits than its factorization.

252151168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954 (or 2942 counting only the distinct ones).

The product of its digits is 4800, while the sum is 31.

The square root of 252151168 is about 15879.2684970058. The cubic root of 252151168 is about 631.7622349753.

The spelling of 252151168 in words is "two hundred fifty-two million, one hundred fifty-one thousand, one hundred sixty-eight".