189156925 has 12 divisors (see below), whose sum is σ = 236835040. Its totient is φ = 149854320.

The previous prime is 189156907. The next prime is 189156931. The reversal of 189156925 is 529651981.

It is not a de Polignac number, because 189156925 - 2⁵ = 189156893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34155 + ... + 39304.

Almost surely, 2^189156925 is an apocalyptic number.

It is an amenable number.

189156925 is a deficient number, since it is larger than the sum of its proper divisors (47678115).

189156925 is a wasteful number, since it uses less digits than its factorization.

189156925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73572 (or 73567 counting only the distinct ones).

The product of its digits is 194400, while the sum is 46.

The square root of 189156925 is about 13753.4332077485. The cubic root of 189156925 is about 574.0381398494.

The spelling of 189156925 in words is "one hundred eighty-nine million, one hundred fifty-six thousand, nine hundred twenty-five".