2503139 has 2 divisors, whose sum is σ = 2503140. Its totient is φ = 2503138.

The previous prime is 2503121. The next prime is 2503141. The reversal of 2503139 is 9313052.

It is a happy number.

2503139 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-2503139 is a prime.

Together with 2503141, 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 (2503339) 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, 1251569 + 1251570.

It is an arithmetic number, because the mean of its divisors is an integer number (1251570).

2^2503139 is an apocalyptic number.

2503139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503139 is an equidigital number, since it uses as much as digits as its factorization.

2503139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2503139 is about 1582.1311576478. The cubic root of 2503139 is about 135.7776607847. Note that the first 3 decimals are identical.

The spelling of 2503139 in words is "two million, five hundred three thousand, one hundred thirty-nine".