213816256 has 14 divisors (see below), whose sum is σ = 424291760. Its totient is φ = 106908096.

The previous prime is 213816241. The next prime is 213816277. The reversal of 213816256 is 652618312.

213816256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1670376 + ... + 1670503.

Almost surely, 2^213816256 is an apocalyptic number.

It is an amenable number.

213816256 is a deficient number, since it is larger than the sum of its proper divisors (210475504).

213816256 is an equidigital number, since it uses as much as digits as its factorization.

213816256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340891 (or 3340881 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 213816256 is about 14622.4572490399. The cubic root of 213816256 is about 597.9711622429.

The spelling of 213816256 in words is "two hundred thirteen million, eight hundred sixteen thousand, two hundred fifty-six".