115994539 has 2 divisors, whose sum is σ = 115994540. Its totient is φ = 115994538.

The previous prime is 115994533. The next prime is 115994569. The reversal of 115994539 is 935499511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115994539 - 2¹⁷ = 115863467 is a prime.

It is not a weakly prime, because it can be changed into another prime (115994533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57997269 + 57997270.

It is an arithmetic number, because the mean of its divisors is an integer number (57997270).

Almost surely, 2^115994539 is an apocalyptic number.

115994539 is a deficient number, since it is larger than the sum of its proper divisors (1).

115994539 is an equidigital number, since it uses as much as digits as its factorization.

115994539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 46.

The square root of 115994539 is about 10770.0760907247. The cubic root of 115994539 is about 487.6922427426.

The spelling of 115994539 in words is "one hundred fifteen million, nine hundred ninety-four thousand, five hundred thirty-nine".