189685125 has 192 divisors, whose sum is σ = 432506880. Its totient is φ = 81648000.

The previous prime is 189685087. The next prime is 189685127. The reversal of 189685125 is 521586981.

It is a happy number.

It is not a de Polignac number, because 189685125 - 2⁶ = 189685061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189685127) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5126607 + ... + 5126643.

It is an arithmetic number, because the mean of its divisors is an integer number (2252640).

Almost surely, 2^189685125 is an apocalyptic number.

189685125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189685125 is an abundant number, since it is smaller than the sum of its proper divisors (242821755).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189685125 is a wasteful number, since it uses less digits than its factorization.

189685125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 83 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 189685125 is about 13772.6222993299. The cubic root of 189685125 is about 574.5719561651.

The spelling of 189685125 in words is "one hundred eighty-nine million, six hundred eighty-five thousand, one hundred twenty-five".