213252912 has 140 divisors (see below), whose sum is σ = 634289760. Its totient is φ = 69393024.

The previous prime is 213252911. The next prime is 213252961. The reversal of 213252912 is 219252312.

It is a happy number.

213252912 is a `hidden beast` number, since 2 + 132 + 529 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (213252911) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 548014 + ... + 548402.

Almost surely, 2^213252912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213252912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317144880).

213252912 is an abundant number, since it is smaller than the sum of its proper divisors (421036848).

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

213252912 is an equidigital number, since it uses as much as digits as its factorization.

213252912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 441 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 213252912 is about 14603.1815711509. The cubic root of 213252912 is about 597.4455399906.

The spelling of 213252912 in words is "two hundred thirteen million, two hundred fifty-two thousand, nine hundred twelve".