188564132 has 12 divisors (see below), whose sum is σ = 347355120. Its totient is φ = 89319816.

The previous prime is 188564111. The next prime is 188564161. The reversal of 188564132 is 231465881.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 1240478 + ... + 1240629.

It is an arithmetic number, because the mean of its divisors is an integer number (28946260).

Almost surely, 2^188564132 is an apocalyptic number.

It is an amenable number.

188564132 is a deficient number, since it is larger than the sum of its proper divisors (158790988).

188564132 is a wasteful number, since it uses less digits than its factorization.

188564132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481130 (or 2481128 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 188564132 is about 13731.8655688147. The cubic root of 188564132 is about 573.4378589247.

The spelling of 188564132 in words is "one hundred eighty-eight million, five hundred sixty-four thousand, one hundred thirty-two".