213316564 has 6 divisors (see below), whose sum is σ = 373303994. Its totient is φ = 106658280.

The previous prime is 213316501. The next prime is 213316567. The reversal of 213316564 is 465613312.

It can be written as a sum of positive squares in only one way, i.e., 191600964 + 21715600 = 13842^2 + 4660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213316567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26664567 + ... + 26664574.

Almost surely, 2^213316564 is an apocalyptic number.

It is an amenable number.

213316564 is a deficient number, since it is larger than the sum of its proper divisors (159987430).

213316564 is a wasteful number, since it uses less digits than its factorization.

213316564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53329145 (or 53329143 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 213316564 is about 14605.3607966390. The cubic root of 213316564 is about 597.5049761786.

Adding to 213316564 its reverse (465613312), we get a palindrome (678929876).

The spelling of 213316564 in words is "two hundred thirteen million, three hundred sixteen thousand, five hundred sixty-four".