138083500157 has 16 divisors (see below), whose sum is σ = 140716533744. Its totient is φ = 135462912000.

The previous prime is 138083500151. The next prime is 138083500171. The reversal of 138083500157 is 751005380831.

It can be written as a sum of positive squares in 8 ways, for example, as 3783972196 + 134299527961 = 61514^2 + 366469^2 .

It is a cyclic number.

It is not a de Polignac number, because 138083500157 - 2³² = 133788532861 is a prime.

It is a Duffinian 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, 66353357 + ... + 66355437.

It is an arithmetic number, because the mean of its divisors is an integer number (8794783359).

Almost surely, 2^138083500157 is an apocalyptic number.

It is an amenable number.

138083500157 is a deficient number, since it is larger than the sum of its proper divisors (2633033587).

138083500157 is a wasteful number, since it uses less digits than its factorization.

138083500157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480.

The product of its (nonzero) digits is 100800, while the sum is 41.

Adding to 138083500157 its reverse (751005380831), we get a palindrome (889088880988).

The spelling of 138083500157 in words is "one hundred thirty-eight billion, eighty-three million, five hundred thousand, one hundred fifty-seven".