189255 has 32 divisors (see below), whose sum is σ = 350208. Its totient is φ = 86400.

The previous prime is 189253. The next prime is 189257. The reversal of 189255 is 552981.

It is an interprime number because it is at equal distance from previous prime (189253) and next prime (189257).

It is not a de Polignac number, because 189255 - 2¹ = 189253 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 189255.

It is not an unprimeable number, because it can be changed into a prime (189251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5097 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (10944).

2¹⁸⁹²⁵⁵ is an apocalyptic number.

189255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189255 is a deficient number, since it is larger than the sum of its proper divisors (160953).

189255 is a wasteful number, since it uses less digits than its factorization.

189255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87.

The product of its digits is 3600, while the sum is 30.

The square root of 189255 is about 435.0344813920. The cubic root of 189255 is about 57.4137332734.

Subtracting from 189255 its sum of digits (30), we obtain a square (189225 = 435²).

It can be divided in two parts, 189 and 255, that added together give a palindrome (444).

The spelling of 189255 in words is "one hundred eighty-nine thousand, two hundred fifty-five".