189025 has 6 divisors (see below), whose sum is σ = 234422. Its totient is φ = 151200.

The previous prime is 189019. The next prime is 189041. The reversal of 189025 is 520981.

It can be written as a sum of positive squares in 3 ways, for example, as 2401 + 186624 = 49^2 + 432^2 .

It is not a de Polignac number, because 189025 - 2³ = 189017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 7561 = 189025 / (1 + 8 + 9 + 0 + 2 + 5).

It is a Duffinian number.

189025 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3756 + ... + 3805.

2¹⁸⁹⁰²⁵ is an apocalyptic number.

It is an amenable number.

189025 is a deficient number, since it is larger than the sum of its proper divisors (45397).

189025 is an equidigital number, since it uses as much as digits as its factorization.

189025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571 (or 7566 counting only the distinct ones).

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

The square root of 189025 is about 434.7700541666. The cubic root of 189025 is about 57.3904657039.

The spelling of 189025 in words is "one hundred eighty-nine thousand, twenty-five".