138948173168133 has 16 divisors (see below), whose sum is σ = 211731222039680. Its totient is φ = 79398703927296.

The previous prime is 138948173168083. The next prime is 138948173168159. The reversal of 138948173168133 is 331861371849831.

It is not a de Polignac number, because 138948173168133 - 2⁸ = 138948173167877 is a prime.

It is a super-2 number, since 2×138948173168133² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138948173168183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3632860 + ... + 17061477.

It is an arithmetic number, because the mean of its divisors is an integer number (13233201377480).

Almost surely, 2^{138948173168133} is an apocalyptic number.

It is an amenable number.

138948173168133 is a deficient number, since it is larger than the sum of its proper divisors (72783048871547).

138948173168133 is a wasteful number, since it uses less digits than its factorization.

138948173168133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21014076.

The product of its digits is 62705664, while the sum is 66.

The spelling of 138948173168133 in words is "one hundred thirty-eight trillion, nine hundred forty-eight billion, one hundred seventy-three million, one hundred sixty-eight thousand, one hundred thirty-three".