138255503047 has 8 divisors (see below), whose sum is σ = 142738831872. Its totient is φ = 133773641400.

The previous prime is 138255503027. The next prime is 138255503053. The reversal of 138255503047 is 740305552831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138255503047 is a prime.

It is a super-2 number, since 2×138255503047² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138255502994 and 138255503012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138255503017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173653 + ... + 553774.

It is an arithmetic number, because the mean of its divisors is an integer number (17842353984).

Almost surely, 2^138255503047 is an apocalyptic number.

138255503047 is a deficient number, since it is larger than the sum of its proper divisors (4483328825).

138255503047 is an equidigital number, since it uses as much as digits as its factorization.

138255503047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733589.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 138255503047 in words is "one hundred thirty-eight billion, two hundred fifty-five million, five hundred three thousand, forty-seven".