213133504 has 14 divisors (see below), whose sum is σ = 422936924. Its totient is φ = 106566720.

The previous prime is 213133493. The next prime is 213133513. The reversal of 213133504 is 405331312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665042 + ... + 1665169.

Almost surely, 2^213133504 is an apocalyptic number.

It is an amenable number.

213133504 is a deficient number, since it is larger than the sum of its proper divisors (209803420).

213133504 is an equidigital number, since it uses as much as digits as its factorization.

213133504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330223 (or 3330213 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 213133504 is about 14599.0925745404. The cubic root of 213133504 is about 597.3340087329.

Adding to 213133504 its reverse (405331312), we get a palindrome (618464816).

The spelling of 213133504 in words is "two hundred thirteen million, one hundred thirty-three thousand, five hundred four".