2519939 has 2 divisors, whose sum is σ = 2519940. Its totient is φ = 2519938.

The previous prime is 2519921. The next prime is 2519941. The reversal of 2519939 is 9399152.

2519939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2519939 is a prime.

Together with 2519941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2519969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259969 + 1259970.

It is an arithmetic number, because the mean of its divisors is an integer number (1259970).

2^2519939 is an apocalyptic number.

2519939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2519939 is an equidigital number, since it uses as much as digits as its factorization.

2519939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21870, while the sum is 38.

The square root of 2519939 is about 1587.4315733284. The cubic root of 2519939 is about 136.0807442953.

The spelling of 2519939 in words is "two million, five hundred nineteen thousand, nine hundred thirty-nine".