185988132 has 54 divisors (see below), whose sum is σ = 516773894. Its totient is φ = 56358720.

The previous prime is 185988083. The next prime is 185988133. The reversal of 185988132 is 231889581.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 127373796 + 58614336 = 11286^2 + 7656^2 .

It is not an unprimeable number, because it can be changed into a prime (185988133) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 16993 + ... + 25704.

Almost surely, 2^185988132 is an apocalyptic number.

185988132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

185988132 is an abundant number, since it is smaller than the sum of its proper divisors (330785762).

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

185988132 is a wasteful number, since it uses less digits than its factorization.

185988132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42729 (or 42713 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 185988132 is about 13637.7465880548. The cubic root of 185988132 is about 570.8146062705.

The spelling of 185988132 in words is "one hundred eighty-five million, nine hundred eighty-eight thousand, one hundred thirty-two".