189170525 has 12 divisors (see below), whose sum is σ = 242139264. Its totient is φ = 146454000.

The previous prime is 189170447. The next prime is 189170533. The reversal of 189170525 is 525071981.

189170525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189170525 - 2²² = 184976221 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, 121271 + ... + 122820.

It is an arithmetic number, because the mean of its divisors is an integer number (20178272).

Almost surely, 2^189170525 is an apocalyptic number.

It is an amenable number.

189170525 is a deficient number, since it is larger than the sum of its proper divisors (52968739).

189170525 is a wasteful number, since it uses less digits than its factorization.

189170525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244132 (or 244127 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 189170525 is about 13753.9276208652. The cubic root of 189170525 is about 574.0518969131.

The spelling of 189170525 in words is "one hundred eighty-nine million, one hundred seventy thousand, five hundred twenty-five".