138106186259 has 2 divisors, whose sum is σ = 138106186260. Its totient is φ = 138106186258.

The previous prime is 138106186241. The next prime is 138106186261. The reversal of 138106186259 is 952681601831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138106186259 - 2²⁴ = 138089409043 is a prime.

Together with 138106186261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138106186279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69053093129 + 69053093130.

It is an arithmetic number, because the mean of its divisors is an integer number (69053093130).

Almost surely, 2^138106186259 is an apocalyptic number.

138106186259 is a deficient number, since it is larger than the sum of its proper divisors (1).

138106186259 is an equidigital number, since it uses as much as digits as its factorization.

138106186259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 138106186259 in words is "one hundred thirty-eight billion, one hundred six million, one hundred eighty-six thousand, two hundred fifty-nine".