115185189 has 16 divisors (see below), whose sum is σ = 175683200. Its totient is φ = 65759040.

The previous prime is 115185157. The next prime is 115185193. The reversal of 115185189 is 981581511.

It is a happy number.

It is not a de Polignac number, because 115185189 - 2⁵ = 115185157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115185289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30759 + ... + 34299.

It is an arithmetic number, because the mean of its divisors is an integer number (10980200).

Almost surely, 2^115185189 is an apocalyptic number.

It is an amenable number.

115185189 is a deficient number, since it is larger than the sum of its proper divisors (60498011).

115185189 is a wasteful number, since it uses less digits than its factorization.

115185189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100.

The product of its digits is 14400, while the sum is 39.

The square root of 115185189 is about 10732.4363030954. The cubic root of 115185189 is about 486.5553060916. Note that the first 3 decimals are identical.

The spelling of 115185189 in words is "one hundred fifteen million, one hundred eighty-five thousand, one hundred eighty-nine".