138135404167 has 2 divisors, whose sum is σ = 138135404168. Its totient is φ = 138135404166.

The previous prime is 138135404161. The next prime is 138135404201. The reversal of 138135404167 is 761404531831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138135404167 - 2²⁷ = 138001186439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138135404161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69067702083 + 69067702084.

It is an arithmetic number, because the mean of its divisors is an integer number (69067702084).

Almost surely, 2^138135404167 is an apocalyptic number.

138135404167 is a deficient number, since it is larger than the sum of its proper divisors (1).

138135404167 is an equidigital number, since it uses as much as digits as its factorization.

138135404167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

Adding to 138135404167 its reverse (761404531831), we get a palindrome (899539935998).

The spelling of 138135404167 in words is "one hundred thirty-eight billion, one hundred thirty-five million, four hundred four thousand, one hundred sixty-seven".