208185132 has 12 divisors (see below), whose sum is σ = 485765336. Its totient is φ = 69395040.

The previous prime is 208185073. The next prime is 208185143. The reversal of 208185132 is 231581802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 208185132.

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 3 ways as a sum of consecutive naturals, for example, 8674369 + ... + 8674392.

Almost surely, 2^208185132 is an apocalyptic number.

It is an amenable number.

208185132 is an abundant number, since it is smaller than the sum of its proper divisors (277580204).

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

208185132 is a wasteful number, since it uses less digits than its factorization.

208185132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17348768 (or 17348766 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 208185132 is about 14428.6219716229. The cubic root of 208185132 is about 592.6749477149.

The spelling of 208185132 in words is "two hundred eight million, one hundred eighty-five thousand, one hundred thirty-two".