135842501009191 has 2 divisors, whose sum is σ = 135842501009192. Its totient is φ = 135842501009190.

The previous prime is 135842501009179. The next prime is 135842501009213. The reversal of 135842501009191 is 191900105248531.

It is a weak prime.

It is an emirp because it is prime and its reverse (191900105248531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135842501009191 - 2⁷ = 135842501009063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135842501009291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67921250504595 + 67921250504596.

It is an arithmetic number, because the mean of its divisors is an integer number (67921250504596).

Almost surely, 2^{135842501009191} is an apocalyptic number.

135842501009191 is a deficient number, since it is larger than the sum of its proper divisors (1).

135842501009191 is an equidigital number, since it uses as much as digits as its factorization.

135842501009191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 49.

The spelling of 135842501009191 in words is "one hundred thirty-five trillion, eight hundred forty-two billion, five hundred one million, nine thousand, one hundred ninety-one".