189179725 has 12 divisors (see below), whose sum is σ = 268094944. Its totient is φ = 129723120.

The previous prime is 189179707. The next prime is 189179729. The reversal of 189179725 is 527971981.

It is not a de Polignac number, because 189179725 - 2⁵ = 189179693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189179729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540339 + ... + 540688.

Almost surely, 2^189179725 is an apocalyptic number.

It is an amenable number.

189179725 is a deficient number, since it is larger than the sum of its proper divisors (78915219).

189179725 is a wasteful number, since it uses less digits than its factorization.

189179725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081044 (or 1081039 counting only the distinct ones).

The product of its digits is 317520, while the sum is 49.

The square root of 189179725 is about 13754.2620667195. The cubic root of 189179725 is about 574.0612027882.

The spelling of 189179725 in words is "one hundred eighty-nine million, one hundred seventy-nine thousand, seven hundred twenty-five".