9738138139 has 2 divisors, whose sum is σ = 9738138140. Its totient is φ = 9738138138.

The previous prime is 9738138121. The next prime is 9738138181. The reversal of 9738138139 is 9318318379.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9738138139 - 2²⁹ = 9201267227 is a prime.

It is not a weakly prime, because it can be changed into another prime (9738138439) 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, 4869069069 + 4869069070.

It is an arithmetic number, because the mean of its divisors is an integer number (4869069070).

Almost surely, 2^9738138139 is an apocalyptic number.

9738138139 is a deficient number, since it is larger than the sum of its proper divisors (1).

9738138139 is an equidigital number, since it uses as much as digits as its factorization.

9738138139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 9738138139 is about 98682.0051427817. The cubic root of 9738138139 is about 2135.4626357136.

The spelling of 9738138139 in words is "nine billion, seven hundred thirty-eight million, one hundred thirty-eight thousand, one hundred thirty-nine".