15001139 has 2 divisors, whose sum is σ = 15001140. Its totient is φ = 15001138.

The previous prime is 15001111. The next prime is 15001141. The reversal of 15001139 is 93110051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15001139 is a prime.

It is a Sophie Germain prime.

Together with 15001141, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15001139.

It is not a weakly prime, because it can be changed into another prime (15001159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7500569 + 7500570.

It is an arithmetic number, because the mean of its divisors is an integer number (7500570).

Almost surely, 2^15001139 is an apocalyptic number.

15001139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15001139 is an equidigital number, since it uses as much as digits as its factorization.

15001139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 15001139 is about 3873.1303876838. The cubic root of 15001139 is about 246.6274495318.

The spelling of 15001139 in words is "fifteen million, one thousand, one hundred thirty-nine".