138264445139 has 2 divisors, whose sum is σ = 138264445140. Its totient is φ = 138264445138.

The previous prime is 138264445117. The next prime is 138264445157. The reversal of 138264445139 is 931544462831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138264445139 - 2¹² = 138264441043 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (138264445439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69132222569 + 69132222570.

It is an arithmetic number, because the mean of its divisors is an integer number (69132222570).

Almost surely, 2^138264445139 is an apocalyptic number.

138264445139 is a deficient number, since it is larger than the sum of its proper divisors (1).

138264445139 is an equidigital number, since it uses as much as digits as its factorization.

138264445139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 50.

The spelling of 138264445139 in words is "one hundred thirty-eight billion, two hundred sixty-four million, four hundred forty-five thousand, one hundred thirty-nine".