15003139 has 2 divisors, whose sum is σ = 15003140. Its totient is φ = 15003138.

The previous prime is 15003137. The next prime is 15003193. The reversal of 15003139 is 93130051.

15003139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (15003193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15003139 - 2¹ = 15003137 is a prime.

Together with 15003137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15003137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7501569 + 7501570.

It is an arithmetic number, because the mean of its divisors is an integer number (7501570).

Almost surely, 2^15003139 is an apocalyptic number.

15003139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15003139 is an equidigital number, since it uses as much as digits as its factorization.

15003139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 15003139 is about 3873.3885681661. The cubic root of 15003139 is about 246.6384094325.

The spelling of 15003139 in words is "fifteen million, three thousand, one hundred thirty-nine".