115138966 has 12 divisors (see below), whose sum is σ = 180545652. Its totient is φ = 55065956.

The previous prime is 115138963. The next prime is 115138997. The reversal of 115138966 is 669831511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115138963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53356 + ... + 55471.

It is an arithmetic number, because the mean of its divisors is an integer number (15045471).

Almost surely, 2^115138966 is an apocalyptic number.

115138966 is a deficient number, since it is larger than the sum of its proper divisors (65406686).

115138966 is a wasteful number, since it uses less digits than its factorization.

115138966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108875 (or 108852 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 115138966 is about 10730.2826617009. The cubic root of 115138966 is about 486.4902136517.

The spelling of 115138966 in words is "one hundred fifteen million, one hundred thirty-eight thousand, nine hundred sixty-six".