189839075 has 12 divisors (see below), whose sum is σ = 243518640. Its totient is φ = 146633760.

The previous prime is 189839059. The next prime is 189839077. The reversal of 189839075 is 570938981.

It is not a de Polignac number, because 189839075 - 2⁴ = 189839059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189839077) 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, 130199 + ... + 131648.

It is an arithmetic number, because the mean of its divisors is an integer number (20293220).

Almost surely, 2^189839075 is an apocalyptic number.

189839075 is a deficient number, since it is larger than the sum of its proper divisors (53679565).

189839075 is a wasteful number, since it uses less digits than its factorization.

189839075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261886 (or 261881 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 189839075 is about 13778.2101522658. The cubic root of 189839075 is about 574.7273565654.

The spelling of 189839075 in words is "one hundred eighty-nine million, eight hundred thirty-nine thousand, seventy-five".