115907543 has 16 divisors (see below), whose sum is σ = 126551040. Its totient is φ = 105753600.

The previous prime is 115907509. The next prime is 115907579. The reversal of 115907543 is 345709511.

It is a cyclic number.

It is not a de Polignac number, because 115907543 - 2²⁴ = 99130327 is a prime.

It is a Smith number, since the sum of its digits (35) 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 (115907843) 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 15 ways as a sum of consecutive naturals, for example, 180503 + ... + 181143.

It is an arithmetic number, because the mean of its divisors is an integer number (7909440).

Almost surely, 2^115907543 is an apocalyptic number.

115907543 is a deficient number, since it is larger than the sum of its proper divisors (10643497).

115907543 is a wasteful number, since it uses less digits than its factorization.

115907543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 115907543 is about 10766.0365501887. The cubic root of 115907543 is about 487.5702890542.

The spelling of 115907543 in words is "one hundred fifteen million, nine hundred seven thousand, five hundred forty-three".