213144304 has 20 divisors (see below), whose sum is σ = 415359576. Its totient is φ = 105954752.

The previous prime is 213144293. The next prime is 213144307. The reversal of 213144304 is 403441312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213144307) 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 3 ways as a sum of consecutive naturals, for example, 35734 + ... + 41269.

Almost surely, 2^213144304 is an apocalyptic number.

It is an amenable number.

213144304 is a deficient number, since it is larger than the sum of its proper divisors (202215272).

213144304 is a wasteful number, since it uses less digits than its factorization.

213144304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77184 (or 77178 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 213144304 is about 14599.4624558577. The cubic root of 213144304 is about 597.3440980247.

Adding to 213144304 its reverse (403441312), we get a palindrome (616585616).

The spelling of 213144304 in words is "two hundred thirteen million, one hundred forty-four thousand, three hundred four".