2875139 has 4 divisors (see below), whose sum is σ = 2888256. Its totient is φ = 2862024.

The previous prime is 2875133. The next prime is 2875151. The reversal of 2875139 is 9315782.

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 2875139 - 2¹⁶ = 2809603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2875099 and 2875108.

It is not an unprimeable number, because it can be changed into a prime (2875133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6224 + ... + 6669.

It is an arithmetic number, because the mean of its divisors is an integer number (722064).

2^2875139 is an apocalyptic number.

2875139 is a deficient number, since it is larger than the sum of its proper divisors (13117).

2875139 is a wasteful number, since it uses less digits than its factorization.

2875139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13116.

The product of its digits is 15120, while the sum is 35.

The square root of 2875139 is about 1695.6234841497. The cubic root of 2875139 is about 142.1956405354.

The spelling of 2875139 in words is "two million, eight hundred seventy-five thousand, one hundred thirty-nine".