115206993 has 24 divisors (see below), whose sum is σ = 182160576. Its totient is φ = 69583200.

The previous prime is 115206991. The next prime is 115207009. The reversal of 115206993 is 399602511.

It is not a de Polignac number, because 115206993 - 2¹ = 115206991 is a prime.

It is a super-2 number, since 2×115206993² = 26545302472204098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (115206991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29548 + ... + 33218.

It is an arithmetic number, because the mean of its divisors is an integer number (7590024).

Almost surely, 2^115206993 is an apocalyptic number.

It is an amenable number.

115206993 is a deficient number, since it is larger than the sum of its proper divisors (66953583).

115206993 is a wasteful number, since it uses less digits than its factorization.

115206993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005 (or 4002 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 115206993 is about 10733.4520542088. The cubic root of 115206993 is about 486.5860050111.

The spelling of 115206993 in words is "one hundred fifteen million, two hundred six thousand, nine hundred ninety-three".