115944993 has 8 divisors (see below), whose sum is σ = 171770400. Its totient is φ = 77296644.

The previous prime is 115944989. The next prime is 115945009. The reversal of 115944993 is 399449511.

115944993 is a `hidden beast` number, since 1 + 159 + 4 + 499 + 3 = 666.

It is not a de Polignac number, because 115944993 - 2² = 115944989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115944193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147103 + ... + 2147156.

It is an arithmetic number, because the mean of its divisors is an integer number (21471300).

Almost surely, 2^115944993 is an apocalyptic number.

It is an amenable number.

115944993 is a deficient number, since it is larger than the sum of its proper divisors (55825407).

115944993 is an equidigital number, since it uses as much as digits as its factorization.

115944993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294268 (or 4294262 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 115944993 is about 10767.7756755980. The cubic root of 115944993 is about 487.6227951024.

The spelling of 115944993 in words is "one hundred fifteen million, nine hundred forty-four thousand, nine hundred ninety-three".