6415139 has 2 divisors, whose sum is σ = 6415140. Its totient is φ = 6415138.

The previous prime is 6415133. The next prime is 6415159. The reversal of 6415139 is 9315146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6415139 - 2⁸ = 6414883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6415133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207569 + 3207570.

It is an arithmetic number, because the mean of its divisors is an integer number (3207570).

Almost surely, 2^6415139 is an apocalyptic number.

6415139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6415139 is an equidigital number, since it uses as much as digits as its factorization.

6415139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 6415139 is about 2532.8124683837. The cubic root of 6415139 is about 185.8098318438.

The spelling of 6415139 in words is "six million, four hundred fifteen thousand, one hundred thirty-nine".