188133080 has 32 divisors (see below), whose sum is σ = 424092240. Its totient is φ = 75112320.

The previous prime is 188133061. The next prime is 188133083. The reversal of 188133080 is 80331881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188133083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18722 + ... + 26958.

Almost surely, 2^188133080 is an apocalyptic number.

188133080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188133080 is an abundant number, since it is smaller than the sum of its proper divisors (235959160).

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

188133080 is a wasteful number, since it uses less digits than its factorization.

188133080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819 (or 8815 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 188133080 is about 13716.1612705596. The cubic root of 188133080 is about 573.0005715806. Note that the first 3 decimals are identical.

The spelling of 188133080 in words is "one hundred eighty-eight million, one hundred thirty-three thousand, eighty".