131447993695177 has 2 divisors, whose sum is σ = 131447993695178. Its totient is φ = 131447993695176.

The previous prime is 131447993695159. The next prime is 131447993695201. The reversal of 131447993695177 is 771596399744131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118256685918921 + 13191307776256 = 10874589^2 + 3631984^2 .

It is a cyclic number.

It is not a de Polignac number, because 131447993695177 - 2³⁵ = 131413633956809 is a prime.

It is a super-2 number, since 2×131447993695177² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131447993695477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65723996847588 + 65723996847589.

It is an arithmetic number, because the mean of its divisors is an integer number (65723996847589).

Almost surely, 2^{131447993695177} is an apocalyptic number.

It is an amenable number.

131447993695177 is a deficient number, since it is larger than the sum of its proper divisors (1).

131447993695177 is an equidigital number, since it uses as much as digits as its factorization.

131447993695177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080203040, while the sum is 76.

The spelling of 131447993695177 in words is "one hundred thirty-one trillion, four hundred forty-seven billion, nine hundred ninety-three million, six hundred ninety-five thousand, one hundred seventy-seven".