213189832 has 16 divisors (see below), whose sum is σ = 409481100. Its totient is φ = 103994880.

The previous prime is 213189827. The next prime is 213189841. The reversal of 213189832 is 238981312.

It can be written as a sum of positive squares in 2 ways, for example, as 163993636 + 49196196 = 12806^2 + 7014^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213189791 and 213189800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324657 + ... + 325312.

Almost surely, 2^213189832 is an apocalyptic number.

It is an amenable number.

213189832 is a deficient number, since it is larger than the sum of its proper divisors (196291268).

213189832 is a wasteful number, since it uses less digits than its factorization.

213189832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650016 (or 650012 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 213189832 is about 14601.0216080930. The cubic root of 213189832 is about 597.3866262485.

The spelling of 213189832 in words is "two hundred thirteen million, one hundred eighty-nine thousand, eight hundred thirty-two".