213142856 has 16 divisors (see below), whose sum is σ = 412535040. Its totient is φ = 103133520.

The previous prime is 213142849. The next prime is 213142859. The reversal of 213142856 is 658241312.

213142856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213142859) 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, 429476 + ... + 429971.

It is an arithmetic number, because the mean of its divisors is an integer number (25783440).

Almost surely, 2^213142856 is an apocalyptic number.

It is an amenable number.

213142856 is a deficient number, since it is larger than the sum of its proper divisors (199392184).

213142856 is a wasteful number, since it uses less digits than its factorization.

213142856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859484 (or 859480 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 213142856 is about 14599.4128649066. The cubic root of 213142856 is about 597.3427453321.

The spelling of 213142856 in words is "two hundred thirteen million, one hundred forty-two thousand, eight hundred fifty-six".