189256 has 16 divisors (see below), whose sum is σ = 364140. Its totient is φ = 92160.

The previous prime is 189253. The next prime is 189257. The reversal of 189256 is 652981.

It can be written as a sum of positive squares in 2 ways, for example, as 188356 + 900 = 434^2 + 30^2 .

It is an alternating number because its digits alternate between odd and even.

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 3 ways as a sum of consecutive naturals, for example, 40 + ... + 616.

2¹⁸⁹²⁵⁶ is an apocalyptic number.

It is an amenable number.

189256 is a deficient number, since it is larger than the sum of its proper divisors (174884).

189256 is a wasteful number, since it uses less digits than its factorization.

189256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 620 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 189256 is about 435.0356307247. The cubic root of 189256 is about 57.4138343956.

Subtracting from 189256 its sum of digits (31), we obtain a square (189225 = 435²).

It can be divided in two parts, 189 and 256, that multiplied together give a palindrome (48384).

The spelling of 189256 in words is "one hundred eighty-nine thousand, two hundred fifty-six".