213516252 has 36 divisors (see below), whose sum is σ = 540181096. Its totient is φ = 71111520.

The previous prime is 213516239. The next prime is 213516257. The reversal of 213516252 is 252615312.

It is a happy number.

213516252 is a `hidden beast` number, since 2 + 1 + 35 + 1 + 625 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213516257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65403 + ... + 68589.

Almost surely, 2^213516252 is an apocalyptic number.

It is an amenable number.

213516252 is an abundant number, since it is smaller than the sum of its proper divisors (326664844).

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

213516252 is a wasteful number, since it uses less digits than its factorization.

213516252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058 (or 5053 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 213516252 is about 14612.1953176106. The cubic root of 213516252 is about 597.6913617086.

The spelling of 213516252 in words is "two hundred thirteen million, five hundred sixteen thousand, two hundred fifty-two".