6738139 has 2 divisors, whose sum is σ = 6738140. Its totient is φ = 6738138.

The previous prime is 6738133. The next prime is 6738163. The reversal of 6738139 is 9318376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6738139 - 2³ = 6738131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6738098 and 6738107.

It is not a weakly prime, because it can be changed into another prime (6738131) 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, 3369069 + 3369070.

It is an arithmetic number, because the mean of its divisors is an integer number (3369070).

Almost surely, 2^6738139 is an apocalyptic number.

6738139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6738139 is an equidigital number, since it uses as much as digits as its factorization.

6738139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 6738139 is about 2595.7925571971. The cubic root of 6738139 is about 188.8773968531.

The spelling of 6738139 in words is "six million, seven hundred thirty-eight thousand, one hundred thirty-nine".