1015139 has 2 divisors, whose sum is σ = 1015140. Its totient is φ = 1015138.

The previous prime is 1015127. The next prime is 1015159. The reversal of 1015139 is 9315101.

It is an a-pointer prime, because the next prime (1015159) can be obtained adding 1015139 to its sum of digits (20).

It is a weak prime.

It is an emirp because it is prime and its reverse (9315101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1015139 - 2⁴ = 1015123 is a prime.

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 1015139.

It is not a weakly prime, because it can be changed into another prime (1015159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507569 + 507570.

It is an arithmetic number, because the mean of its divisors is an integer number (507570).

2^1015139 is an apocalyptic number.

1015139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015139 is an equidigital number, since it uses as much as digits as its factorization.

1015139 is an evil number, because the sum of its binary digits is even.

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

The square root of 1015139 is about 1007.5410661606. The cubic root of 1015139 is about 100.5021079894.

The spelling of 1015139 in words is "one million, fifteen thousand, one hundred thirty-nine".