138074365613 has 2 divisors, whose sum is σ = 138074365614. Its totient is φ = 138074365612.

The previous prime is 138074365553. The next prime is 138074365631. The reversal of 138074365613 is 316563470831.

Together with next prime (138074365631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81271746724 + 56802618889 = 285082^2 + 238333^2 .

It is an emirp because it is prime and its reverse (316563470831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138074365613 - 2¹² = 138074361517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138074365673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69037182806 + 69037182807.

It is an arithmetic number, because the mean of its divisors is an integer number (69037182807).

Almost surely, 2^138074365613 is an apocalyptic number.

It is an amenable number.

138074365613 is a deficient number, since it is larger than the sum of its proper divisors (1).

138074365613 is an equidigital number, since it uses as much as digits as its factorization.

138074365613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 138074365613 in words is "one hundred thirty-eight billion, seventy-four million, three hundred sixty-five thousand, six hundred thirteen".