2495139 has 4 divisors (see below), whose sum is σ = 3326856. Its totient is φ = 1663424.

The previous prime is 2495123. The next prime is 2495149. The reversal of 2495139 is 9315942.

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 2495139 - 2⁴ = 2495123 is a prime.

It is a D-number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2495149) 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, 415854 + ... + 415859.

It is an arithmetic number, because the mean of its divisors is an integer number (831714).

2^2495139 is an apocalyptic number.

2495139 is a deficient number, since it is larger than the sum of its proper divisors (831717).

2495139 is an equidigital number, since it uses as much as digits as its factorization.

2495139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831716.

The product of its digits is 9720, while the sum is 33.

The square root of 2495139 is about 1579.6008989615. The cubic root of 2495139 is about 135.6328585280.

The spelling of 2495139 in words is "two million, four hundred ninety-five thousand, one hundred thirty-nine".