188628125 has 24 divisors (see below), whose sum is σ = 269482752. Its totient is φ = 129330000.

The previous prime is 188628047. The next prime is 188628157. The reversal of 188628125 is 521826881.

It is a happy number.

It is not a de Polignac number, because 188628125 - 2²⁰ = 187579549 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17564 + ... + 26186.

It is an arithmetic number, because the mean of its divisors is an integer number (11228448).

Almost surely, 2^188628125 is an apocalyptic number.

It is an amenable number.

188628125 is a deficient number, since it is larger than the sum of its proper divisors (80854627).

188628125 is an frugal number, since it uses more digits than its factorization.

188628125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655 (or 8635 counting only the distinct ones).

The product of its digits is 61440, while the sum is 41.

The square root of 188628125 is about 13734.1954624215. The cubic root of 188628125 is about 573.5027207803.

The spelling of 188628125 in words is "one hundred eighty-eight million, six hundred twenty-eight thousand, one hundred twenty-five".