138400115285 has 8 divisors (see below), whose sum is σ = 166159274400. Its totient is φ = 110667334864.

The previous prime is 138400115221. The next prime is 138400115311. The reversal of 138400115285 is 582511004831.

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 138400115285 - 2⁶ = 138400115221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6583127 + ... + 6604116.

It is an arithmetic number, because the mean of its divisors is an integer number (20769909300).

Almost surely, 2^138400115285 is an apocalyptic number.

It is an amenable number.

138400115285 is a deficient number, since it is larger than the sum of its proper divisors (27759159115).

138400115285 is a wasteful number, since it uses less digits than its factorization.

138400115285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13189347.

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 138400115285 in words is "one hundred thirty-eight billion, four hundred million, one hundred fifteen thousand, two hundred eighty-five".