6315139 has 2 divisors, whose sum is σ = 6315140. Its totient is φ = 6315138.

The previous prime is 6315131. The next prime is 6315151. The reversal of 6315139 is 9315136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6315139 - 2³ = 6315131 is a prime.

It is not a weakly prime, because it can be changed into another prime (6315131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157569 + 3157570.

It is an arithmetic number, because the mean of its divisors is an integer number (3157570).

Almost surely, 2^6315139 is an apocalyptic number.

6315139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6315139 is an equidigital number, since it uses as much as digits as its factorization.

6315139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 28.

The square root of 6315139 is about 2512.9940310315. The cubic root of 6315139 is about 184.8392955516.

It can be divided in two parts, 63151 and 39, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 6315139 in words is "six million, three hundred fifteen thousand, one hundred thirty-nine".