188543136 has 48 divisors (see below), whose sum is σ = 495633600. Its totient is φ = 62757888.

The previous prime is 188543093. The next prime is 188543143. The reversal of 188543136 is 631345881.

188543136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 188543094 and 188543103.

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 7 ways as a sum of consecutive naturals, for example, 125880 + ... + 127368.

It is an arithmetic number, because the mean of its divisors is an integer number (10325700).

Almost surely, 2^188543136 is an apocalyptic number.

188543136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

188543136 is an abundant number, since it is smaller than the sum of its proper divisors (307090464).

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

188543136 is a wasteful number, since it uses less digits than its factorization.

188543136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2813 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 188543136 is about 13731.1010483501. The cubic root of 188543136 is about 573.4165746573.

The spelling of 188543136 in words is "one hundred eighty-eight million, five hundred forty-three thousand, one hundred thirty-six".