189250 has 16 divisors (see below), whose sum is σ = 354744. Its totient is φ = 75600.

The previous prime is 189239. The next prime is 189251. The reversal of 189250 is 52981.

It can be written as a sum of positive squares in 4 ways, for example, as 66049 + 123201 = 257^2 + 351^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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.

189250 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129 + ... + 628.

2¹⁸⁹²⁵⁰ is an apocalyptic number.

189250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189250 is a deficient number, since it is larger than the sum of its proper divisors (165494).

189250 is an equidigital number, since it uses as much as digits as its factorization.

189250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 189250 is about 435.0287346831. The cubic root of 189250 is about 57.4132276572.

Subtracting from 189250 its sum of digits (25), we obtain a square (189225 = 435²).

The spelling of 189250 in words is "one hundred eighty-nine thousand, two hundred fifty".