213013304 has 32 divisors (see below), whose sum is σ = 476305920. Its totient is φ = 87321696.

The previous prime is 213013303. The next prime is 213013337. The reversal of 213013304 is 403310312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81404 + ... + 83979.

It is an arithmetic number, because the mean of its divisors is an integer number (14884560).

Almost surely, 2^213013304 is an apocalyptic number.

It is an amenable number.

213013304 is an abundant number, since it is smaller than the sum of its proper divisors (263292616).

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

213013304 is a wasteful number, since it uses less digits than its factorization.

213013304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165419 (or 165415 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213013304 is about 14594.9752997393. The cubic root of 213013304 is about 597.2216956393.

Adding to 213013304 its reverse (403310312), we get a palindrome (616323616).

The spelling of 213013304 in words is "two hundred thirteen million, thirteen thousand, three hundred four".