13939121192 has 8 divisors (see below), whose sum is σ = 26135852250. Its totient is φ = 6969560592.

The previous prime is 13939121191. The next prime is 13939121197. The reversal of 13939121192 is 29112193931.

13939121192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9652276516 + 4286844676 = 98246^2 + 65474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13939121191) 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 as a sum of consecutive naturals, namely, 871195067 + ... + 871195082.

Almost surely, 2^13939121192 is an apocalyptic number.

It is an amenable number.

13939121192 is a deficient number, since it is larger than the sum of its proper divisors (12196731058).

13939121192 is a wasteful number, since it uses less digits than its factorization.

13939121192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742390155 (or 1742390151 counting only the distinct ones).

The product of its digits is 26244, while the sum is 41.

The spelling of 13939121192 in words is "thirteen billion, nine hundred thirty-nine million, one hundred twenty-one thousand, one hundred ninety-two".