188955 has 48 divisors (see below), whose sum is σ = 393120. Its totient is φ = 82944.

The previous prime is 188953. The next prime is 188957. The reversal of 188955 is 559881.

188955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (188953) and next prime (188957).

It is not a de Polignac number, because 188955 - 2¹ = 188953 is a prime.

It is an Ulam number.

Its product of digits (14400) is a multiple of the sum of its prime factors (60).

It is not an unprimeable number, because it can be changed into a prime (188953) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9936 + ... + 9954.

It is an arithmetic number, because the mean of its divisors is an integer number (8190).

2¹⁸⁸⁹⁵⁵ is an apocalyptic number.

188955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

188955 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

188955 is a wasteful number, since it uses less digits than its factorization.

188955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 57 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 188955 is about 434.6895443877. The cubic root of 188955 is about 57.3833805236.

The spelling of 188955 in words is "one hundred eighty-eight thousand, nine hundred fifty-five".