213303604 has 6 divisors (see below), whose sum is σ = 373281314. Its totient is φ = 106651800.

The previous prime is 213303599. The next prime is 213303619. The reversal of 213303604 is 406303312.

It can be written as a sum of positive squares in only one way, i.e., 168948004 + 44355600 = 12998^2 + 6660^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26662947 + ... + 26662954.

Almost surely, 2^213303604 is an apocalyptic number.

It is an amenable number.

213303604 is a deficient number, since it is larger than the sum of its proper divisors (159977710).

213303604 is a wasteful number, since it uses less digits than its factorization.

213303604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53325905 (or 53325903 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 213303604 is about 14604.9171171904. The cubic root of 213303604 is about 597.4928755066.

Adding to 213303604 its reverse (406303312), we get a palindrome (619606916).

The spelling of 213303604 in words is "two hundred thirteen million, three hundred three thousand, six hundred four".