138175992167 has 2 divisors, whose sum is σ = 138175992168. Its totient is φ = 138175992166.

The previous prime is 138175992047. The next prime is 138175992173. The reversal of 138175992167 is 761299571831.

138175992167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138175992167 - 2³⁰ = 137102250343 is a prime.

It is a super-2 number, since 2×138175992167² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138175992667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69087996083 + 69087996084.

It is an arithmetic number, because the mean of its divisors is an integer number (69087996084).

Almost surely, 2^138175992167 is an apocalyptic number.

138175992167 is a deficient number, since it is larger than the sum of its proper divisors (1).

138175992167 is an equidigital number, since it uses as much as digits as its factorization.

138175992167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 59.

The spelling of 138175992167 in words is "one hundred thirty-eight billion, one hundred seventy-five million, nine hundred ninety-two thousand, one hundred sixty-seven".