115148189 has 16 divisors (see below), whose sum is σ = 136214400. Its totient is φ = 96313536.

The previous prime is 115148177. The next prime is 115148203. The reversal of 115148189 is 981841511.

It is a cyclic number.

It is not a de Polignac number, because 115148189 - 2²⁰ = 114099613 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115148149) 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, 4454 + ... + 15815.

It is an arithmetic number, because the mean of its divisors is an integer number (8513400).

Almost surely, 2^115148189 is an apocalyptic number.

115148189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

115148189 is a deficient number, since it is larger than the sum of its proper divisors (21066211).

115148189 is a wasteful number, since it uses less digits than its factorization.

115148189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20324.

The product of its digits is 11520, while the sum is 38.

The square root of 115148189 is about 10730.7124181016. The cubic root of 115148189 is about 486.5032031131.

The spelling of 115148189 in words is "one hundred fifteen million, one hundred forty-eight thousand, one hundred eighty-nine".