252213132 has 12 divisors (see below), whose sum is σ = 588497336. Its totient is φ = 84071040.

The previous prime is 252213107. The next prime is 252213149. The reversal of 252213132 is 231312252.

252213132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×252213132² = 127222927906498848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252213099 and 252213108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10508869 + ... + 10508892.

Almost surely, 2^252213132 is an apocalyptic number.

It is an amenable number.

252213132 is an abundant number, since it is smaller than the sum of its proper divisors (336284204).

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

252213132 is a wasteful number, since it uses less digits than its factorization.

252213132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21017768 (or 21017766 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 252213132 is about 15881.2194745870. The cubic root of 252213132 is about 631.8139807981.

Adding to 252213132 its reverse (231312252), we get a palindrome (483525384).

The spelling of 252213132 in words is "two hundred fifty-two million, two hundred thirteen thousand, one hundred thirty-two".