13901447138 has 16 divisors (see below), whose sum is σ = 20946325464. Its totient is φ = 6919372800.

The previous prime is 13901447123. The next prime is 13901447141. The reversal of 13901447138 is 83174410931.

It can be written as a sum of positive squares in 4 ways, for example, as 12242758609 + 1658688529 = 110647^2 + 40727^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13901447095 and 13901447104.

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, 918206 + ... + 933222.

Almost surely, 2^13901447138 is an apocalyptic number.

13901447138 is a deficient number, since it is larger than the sum of its proper divisors (7044878326).

13901447138 is a wasteful number, since it uses less digits than its factorization.

13901447138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17077.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 13901447138 in words is "thirteen billion, nine hundred one million, four hundred forty-seven thousand, one hundred thirty-eight".