188512942 has 16 divisors (see below), whose sum is σ = 287505360. Its totient is φ = 92683008.

The previous prime is 188512931. The next prime is 188512967. The reversal of 188512942 is 249215881.

It is a junction number, because it is equal to n+sod(n) for n = 188512895 and 188512904.

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 7 ways as a sum of consecutive naturals, for example, 110238 + ... + 111934.

It is an arithmetic number, because the mean of its divisors is an integer number (17969085).

Almost surely, 2^188512942 is an apocalyptic number.

188512942 is a deficient number, since it is larger than the sum of its proper divisors (98992418).

188512942 is a wasteful number, since it uses less digits than its factorization.

188512942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595.

The product of its digits is 46080, while the sum is 40.

The square root of 188512942 is about 13730.0015294974. The cubic root of 188512942 is about 573.3859633346.

The spelling of 188512942 in words is "one hundred eighty-eight million, five hundred twelve thousand, nine hundred forty-two".