2539913 has 4 divisors (see below), whose sum is σ = 2650368. Its totient is φ = 2429460.

The previous prime is 2539871. The next prime is 2539951. The reversal of 2539913 is 3199352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2539913 - 2⁸ = 2539657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2539913.

It is not an unprimeable number, because it can be changed into a prime (2539963) 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, 55193 + ... + 55238.

It is an arithmetic number, because the mean of its divisors is an integer number (662592).

2^2539913 is an apocalyptic number.

2539913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2539913 is a deficient number, since it is larger than the sum of its proper divisors (110455).

2539913 is a wasteful number, since it uses less digits than its factorization.

2539913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110454.

The product of its digits is 7290, while the sum is 32.

The square root of 2539913 is about 1593.7104504897. The cubic root of 2539913 is about 136.4393411687.

The spelling of 2539913 in words is "two million, five hundred thirty-nine thousand, nine hundred thirteen".