115077139 has 4 divisors (see below), whose sum is σ = 115484056. Its totient is φ = 114670224.

The previous prime is 115077047. The next prime is 115077163. The reversal of 115077139 is 931770511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931770511 = 7 ⋅133110073.

It is a cyclic number.

It is not a de Polignac number, because 115077139 - 2²¹ = 112979987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115077839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203034 + ... + 203599.

It is an arithmetic number, because the mean of its divisors is an integer number (28871014).

Almost surely, 2^115077139 is an apocalyptic number.

115077139 is a deficient number, since it is larger than the sum of its proper divisors (406917).

115077139 is an equidigital number, since it uses as much as digits as its factorization.

115077139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406916.

The product of its (nonzero) digits is 6615, while the sum is 34.

The square root of 115077139 is about 10727.4013162555. The cubic root of 115077139 is about 486.4031200093.

The spelling of 115077139 in words is "one hundred fifteen million, seventy-seven thousand, one hundred thirty-nine".