131422845905947 has 2 divisors, whose sum is σ = 131422845905948. Its totient is φ = 131422845905946.

The previous prime is 131422845905927. The next prime is 131422845905971. The reversal of 131422845905947 is 749509548224131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (749509548224131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131422845905947 is a prime.

It is not a weakly prime, because it can be changed into another prime (131422845905927) 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, 65711422952973 + 65711422952974.

It is an arithmetic number, because the mean of its divisors is an integer number (65711422952974).

Almost surely, 2^{131422845905947} is an apocalyptic number.

131422845905947 is a deficient number, since it is larger than the sum of its proper divisors (1).

131422845905947 is an equidigital number, since it uses as much as digits as its factorization.

131422845905947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 131422845905947 in words is "one hundred thirty-one trillion, four hundred twenty-two billion, eight hundred forty-five million, nine hundred five thousand, nine hundred forty-seven".