131775685687351 has 2 divisors, whose sum is σ = 131775685687352. Its totient is φ = 131775685687350.

The previous prime is 131775685687307. The next prime is 131775685687411. The reversal of 131775685687351 is 153786586577131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131775685687351 - 2⁷ = 131775685687223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131775685087351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65887842843675 + 65887842843676.

It is an arithmetic number, because the mean of its divisors is an integer number (65887842843676).

Almost surely, 2^{131775685687351} is an apocalyptic number.

131775685687351 is a deficient number, since it is larger than the sum of its proper divisors (1).

131775685687351 is an equidigital number, since it uses as much as digits as its factorization.

131775685687351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056000, while the sum is 73.

The spelling of 131775685687351 in words is "one hundred thirty-one trillion, seven hundred seventy-five billion, six hundred eighty-five million, six hundred eighty-seven thousand, three hundred fifty-one".