138913646183 has 4 divisors (see below), whose sum is σ = 149599311288. Its totient is φ = 128227981080.

The previous prime is 138913646159. The next prime is 138913646213. The reversal of 138913646183 is 381646319831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 381646319831 = 7 ⋅54520902833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138913646183 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 (138913646383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342832533 + ... + 5342832558.

It is an arithmetic number, because the mean of its divisors is an integer number (37399827822).

Almost surely, 2^138913646183 is an apocalyptic number.

138913646183 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138913646183 is a deficient number, since it is larger than the sum of its proper divisors (10685665105).

138913646183 is a wasteful number, since it uses less digits than its factorization.

138913646183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685665104.

The product of its digits is 2239488, while the sum is 53.

The spelling of 138913646183 in words is "one hundred thirty-eight billion, nine hundred thirteen million, six hundred forty-six thousand, one hundred eighty-three".