115167139 has 4 divisors (see below), whose sum is σ = 118882240. Its totient is φ = 111452040.

The previous prime is 115167137. The next prime is 115167179. The reversal of 115167139 is 931761511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115167139 - 2¹ = 115167137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115167137) 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 3 ways as a sum of consecutive naturals, for example, 1857504 + ... + 1857565.

It is an arithmetic number, because the mean of its divisors is an integer number (29720560).

Almost surely, 2^115167139 is an apocalyptic number.

115167139 is a deficient number, since it is larger than the sum of its proper divisors (3715101).

115167139 is an equidigital number, since it uses as much as digits as its factorization.

115167139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715100.

The product of its digits is 5670, while the sum is 34.

The square root of 115167139 is about 10731.5953613617. The cubic root of 115167139 is about 486.5298896813.

The spelling of 115167139 in words is "one hundred fifteen million, one hundred sixty-seven thousand, one hundred thirty-nine".