213682536 has 48 divisors (see below), whose sum is σ = 600163200. Its totient is φ = 71226864.

The previous prime is 213682517. The next prime is 213682541. The reversal of 213682536 is 635286312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 213682536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53016 + ... + 56903.

It is an arithmetic number, because the mean of its divisors is an integer number (12503400).

Almost surely, 2^213682536 is an apocalyptic number.

It is an amenable number.

213682536 is an abundant number, since it is smaller than the sum of its proper divisors (386480664).

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

213682536 is a wasteful number, since it uses less digits than its factorization.

213682536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109940 (or 109924 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 213682536 is about 14617.8841150147. The cubic root of 213682536 is about 597.8464798323.

The spelling of 213682536 in words is "two hundred thirteen million, six hundred eighty-two thousand, five hundred thirty-six".