188455152 has 40 divisors (see below), whose sum is σ = 492718464. Its totient is φ = 62060224.

The previous prime is 188455139. The next prime is 188455187. The reversal of 188455152 is 251554881.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 188455152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19668 + ... + 27635.

Almost surely, 2^188455152 is an apocalyptic number.

188455152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188455152 is an abundant number, since it is smaller than the sum of its proper divisors (304263312).

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

188455152 is a wasteful number, since it uses less digits than its factorization.

188455152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47397 (or 47391 counting only the distinct ones).

The product of its digits is 64000, while the sum is 39.

The square root of 188455152 is about 13727.8968527593. The cubic root of 188455152 is about 573.3273654808.

The spelling of 188455152 in words is "one hundred eighty-eight million, four hundred fifty-five thousand, one hundred fifty-two".