213799128 has 32 divisors (see below), whose sum is σ = 535346160. Its totient is φ = 71153280.

The previous prime is 213799121. The next prime is 213799129. The reversal of 213799128 is 821997312.

213799128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213799128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213799121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9126 + ... + 22602.

Almost surely, 2^213799128 is an apocalyptic number.

It is an amenable number.

213799128 is an abundant number, since it is smaller than the sum of its proper divisors (321547032).

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

213799128 is a wasteful number, since it uses less digits than its factorization.

213799128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14147 (or 14143 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 213799128 is about 14621.8715628335. The cubic root of 213799128 is about 597.9551947579.

The spelling of 213799128 in words is "two hundred thirteen million, seven hundred ninety-nine thousand, one hundred twenty-eight".