7015139 has 2 divisors, whose sum is σ = 7015140. Its totient is φ = 7015138.

The previous prime is 7015111. The next prime is 7015213. The reversal of 7015139 is 9315107.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7015139 - 2¹⁶ = 6949603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7015109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3507569 + 3507570.

It is an arithmetic number, because the mean of its divisors is an integer number (3507570).

Almost surely, 2^7015139 is an apocalyptic number.

7015139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7015139 is an equidigital number, since it uses as much as digits as its factorization.

7015139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 7015139 is about 2648.6107679310. The cubic root of 7015139 is about 191.4309231007.

Subtracting 7015139 from its reverse (9315107), we obtain a cube (2299968 = 132³).

The spelling of 7015139 in words is "seven million, fifteen thousand, one hundred thirty-nine".