252130236 has 24 divisors (see below), whose sum is σ = 594916560. Its totient is φ = 83098752.

The previous prime is 252130211. The next prime is 252130243. The reversal of 252130236 is 632031252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116971 + ... + 119106.

It is an arithmetic number, because the mean of its divisors is an integer number (24788190).

Almost surely, 2^252130236 is an apocalyptic number.

It is an amenable number.

252130236 is an abundant number, since it is smaller than the sum of its proper divisors (342786324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252130236 is a wasteful number, since it uses less digits than its factorization.

252130236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236173 (or 236171 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 252130236 is about 15878.6093849556. The cubic root of 252130236 is about 631.7447528526.

Adding to 252130236 its reverse (632031252), we get a palindrome (884161488).

The spelling of 252130236 in words is "two hundred fifty-two million, one hundred thirty thousand, two hundred thirty-six".