213218452 has 12 divisors (see below), whose sum is σ = 373235296. Its totient is φ = 106579800.

The previous prime is 213218449. The next prime is 213218483. The reversal of 213218452 is 254812312.

213218452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213218452.

It is a congruent number.

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, 21673 + ... + 29935.

Almost surely, 2^213218452 is an apocalyptic number.

It is an amenable number.

213218452 is a deficient number, since it is larger than the sum of its proper divisors (160016844).

213218452 is a wasteful number, since it uses less digits than its factorization.

213218452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14718 (or 14716 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 213218452 is about 14602.0016436104. The cubic root of 213218452 is about 597.4133574174.

The spelling of 213218452 in words is "two hundred thirteen million, two hundred eighteen thousand, four hundred fifty-two".