115755139 has 2 divisors, whose sum is σ = 115755140. Its totient is φ = 115755138.

The previous prime is 115755089. The next prime is 115755173. The reversal of 115755139 is 931557511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115755139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115755098 and 115755107.

It is not a weakly prime, because it can be changed into another prime (115755179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57877569 + 57877570.

It is an arithmetic number, because the mean of its divisors is an integer number (57877570).

Almost surely, 2^115755139 is an apocalyptic number.

115755139 is a deficient number, since it is larger than the sum of its proper divisors (1).

115755139 is an equidigital number, since it uses as much as digits as its factorization.

115755139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23625, while the sum is 37.

The square root of 115755139 is about 10758.9562226082. The cubic root of 115755139 is about 487.3564972316.

The spelling of 115755139 in words is "one hundred fifteen million, seven hundred fifty-five thousand, one hundred thirty-nine".