138924023543 has 8 divisors (see below), whose sum is σ = 142686179328. Its totient is φ = 135162260064.

The previous prime is 138924023531. The next prime is 138924023561. The reversal of 138924023543 is 345320429831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138924023543 - 2¹⁰ = 138924022519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138924023494 and 138924023503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138924023143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708305 + ... + 882917.

It is an arithmetic number, because the mean of its divisors is an integer number (17835772416).

Almost surely, 2^138924023543 is an apocalyptic number.

138924023543 is a deficient number, since it is larger than the sum of its proper divisors (3762155785).

138924023543 is a wasteful number, since it uses less digits than its factorization.

138924023543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196153.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 138924023543 in words is "one hundred thirty-eight billion, nine hundred twenty-four million, twenty-three thousand, five hundred forty-three".