115885791 has 12 divisors (see below), whose sum is σ = 191303632. Its totient is φ = 66220416.

The previous prime is 115885789. The next prime is 115885801. The reversal of 115885791 is 197588511.

115885791 is a `hidden beast` number, since 11 + 588 + 57 + 9 + 1 = 666.

It is not a de Polignac number, because 115885791 - 2¹ = 115885789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115885751) 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, 919666 + ... + 919791.

Almost surely, 2^115885791 is an apocalyptic number.

115885791 is a deficient number, since it is larger than the sum of its proper divisors (75417841).

115885791 is a wasteful number, since it uses less digits than its factorization.

115885791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839470 (or 1839467 counting only the distinct ones).

The product of its digits is 100800, while the sum is 45.

The square root of 115885791 is about 10765.0262888671. The cubic root of 115885791 is about 487.5397868908.

The spelling of 115885791 in words is "one hundred fifteen million, eight hundred eighty-five thousand, seven hundred ninety-one".