115968539 has 2 divisors, whose sum is σ = 115968540. Its totient is φ = 115968538.

The previous prime is 115968511. The next prime is 115968547. The reversal of 115968539 is 935869511.

It is a strong prime.

It is an emirp because it is prime and its reverse (935869511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115968539 - 2⁸ = 115968283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115968493 and 115968502.

It is not a weakly prime, because it can be changed into another prime (115968569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57984269 + 57984270.

It is an arithmetic number, because the mean of its divisors is an integer number (57984270).

Almost surely, 2^115968539 is an apocalyptic number.

115968539 is a deficient number, since it is larger than the sum of its proper divisors (1).

115968539 is an equidigital number, since it uses as much as digits as its factorization.

115968539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 47.

The square root of 115968539 is about 10768.8689749667. The cubic root of 115968539 is about 487.6558015275.

The spelling of 115968539 in words is "one hundred fifteen million, nine hundred sixty-eight thousand, five hundred thirty-nine".