138212715134 has 16 divisors (see below), whose sum is σ = 227479275072. Its totient is φ = 62586889248.

The previous prime is 138212715133. The next prime is 138212715169. The reversal of 138212715134 is 431517212831.

138212715134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138212715133) 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 in 7 ways as a sum of consecutive naturals, for example, 50148374 + ... + 50151129.

It is an arithmetic number, because the mean of its divisors is an integer number (14217454692).

Almost surely, 2^138212715134 is an apocalyptic number.

138212715134 is a deficient number, since it is larger than the sum of its proper divisors (89266559938).

138212715134 is a wasteful number, since it uses less digits than its factorization.

138212715134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100299571.

The product of its digits is 40320, while the sum is 38.

Adding to 138212715134 its reverse (431517212831), we get a palindrome (569729927965).

The spelling of 138212715134 in words is "one hundred thirty-eight billion, two hundred twelve million, seven hundred fifteen thousand, one hundred thirty-four".