138083500158 has 32 divisors (see below), whose sum is σ = 277992207360. Its totient is φ = 45724155840.

The previous prime is 138083500151. The next prime is 138083500171. The reversal of 138083500158 is 851005380831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138083500151) 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, 999466 + ... + 1129202.

It is an arithmetic number, because the mean of its divisors is an integer number (8687256480).

Almost surely, 2^138083500158 is an apocalyptic number.

138083500158 is an abundant number, since it is smaller than the sum of its proper divisors (139908707202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138083500158 is a wasteful number, since it uses less digits than its factorization.

138083500158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130912.

The product of its (nonzero) digits is 115200, while the sum is 42.

Adding to 138083500158 its reverse (851005380831), we get a palindrome (989088880989).

The spelling of 138083500158 in words is "one hundred thirty-eight billion, eighty-three million, five hundred thousand, one hundred fifty-eight".