139094305871 has 2 divisors, whose sum is σ = 139094305872. Its totient is φ = 139094305870.

The previous prime is 139094305843. The next prime is 139094305919. The reversal of 139094305871 is 178503490931.

It is a weak prime.

It is an emirp because it is prime and its reverse (178503490931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139094305871 - 2⁶ = 139094305807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139094305811) 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, 69547152935 + 69547152936.

It is an arithmetic number, because the mean of its divisors is an integer number (69547152936).

Almost surely, 2^139094305871 is an apocalyptic number.

139094305871 is a deficient number, since it is larger than the sum of its proper divisors (1).

139094305871 is an equidigital number, since it uses as much as digits as its factorization.

139094305871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 139094305871 in words is "one hundred thirty-nine billion, ninety-four million, three hundred five thousand, eight hundred seventy-one".