3115139 has 4 divisors (see below), whose sum is σ = 3191160. Its totient is φ = 3039120.

The previous prime is 3115117. The next prime is 3115153. The reversal of 3115139 is 9315113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9315113 = 479 ⋅19447.

It is a cyclic number.

It is not a de Polignac number, because 3115139 - 2²⁰ = 2066563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3115109) 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, 37949 + ... + 38030.

It is an arithmetic number, because the mean of its divisors is an integer number (797790).

Almost surely, 2^3115139 is an apocalyptic number.

3115139 is a deficient number, since it is larger than the sum of its proper divisors (76021).

3115139 is an equidigital number, since it uses as much as digits as its factorization.

3115139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76020.

The product of its digits is 405, while the sum is 23.

The square root of 3115139 is about 1764.9756372256. The cubic root of 3115139 is about 146.0469449337.

The spelling of 3115139 in words is "three million, one hundred fifteen thousand, one hundred thirty-nine".