213014656 has 32 divisors (see below), whose sum is σ = 428592780. Its totient is φ = 105446400.

The previous prime is 213014629. The next prime is 213014663. The reversal of 213014656 is 656410312.

It can be written as a sum of positive squares in 2 ways, for example, as 203918400 + 9096256 = 14280^2 + 3016^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4690 + ... + 21166.

Almost surely, 2^213014656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213014656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214296390).

213014656 is an abundant number, since it is smaller than the sum of its proper divisors (215578124).

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

213014656 is a wasteful number, since it uses less digits than its factorization.

213014656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16592 (or 16580 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 213014656 is about 14595.0216169761. The cubic root of 213014656 is about 597.2229591629. Note that the first 3 decimals are identical.

Adding to 213014656 its reverse (656410312), we get a palindrome (869424968).

The spelling of 213014656 in words is "two hundred thirteen million, fourteen thousand, six hundred fifty-six".