213322064 has 20 divisors (see below), whose sum is σ = 417327456. Its totient is φ = 105624672.

The previous prime is 213322061. The next prime is 213322091. The reversal of 213322064 is 460223312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213322061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63074 + ... + 66369.

Almost surely, 2^213322064 is an apocalyptic number.

It is an amenable number.

213322064 is a deficient number, since it is larger than the sum of its proper divisors (204005392).

213322064 is a wasteful number, since it uses less digits than its factorization.

213322064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129554 (or 129548 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 213322064 is about 14605.5490824549. The cubic root of 213322064 is about 597.5101113465.

Adding to 213322064 its reverse (460223312), we get a palindrome (673545376).

The spelling of 213322064 in words is "two hundred thirteen million, three hundred twenty-two thousand, sixty-four".