131746633386281 has 2 divisors, whose sum is σ = 131746633386282. Its totient is φ = 131746633386280.

The previous prime is 131746633386239. The next prime is 131746633386367. The reversal of 131746633386281 is 182683336647131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100820978131225 + 30925655255056 = 10040965^2 + 5561084^2 .

It is an emirp because it is prime and its reverse (182683336647131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131746633386281 - 2²² = 131746629191977 is a prime.

It is a super-2 number, since 2×131746633386281² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131746633386881) 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, 65873316693140 + 65873316693141.

It is an arithmetic number, because the mean of its divisors is an integer number (65873316693141).

Almost surely, 2^{131746633386281} is an apocalyptic number.

It is an amenable number.

131746633386281 is a deficient number, since it is larger than the sum of its proper divisors (1).

131746633386281 is an equidigital number, since it uses as much as digits as its factorization.

131746633386281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 62.

The spelling of 131746633386281 in words is "one hundred thirty-one trillion, seven hundred forty-six billion, six hundred thirty-three million, three hundred eighty-six thousand, two hundred eighty-one".