131444773417 has 2 divisors, whose sum is σ = 131444773418. Its totient is φ = 131444773416.

The previous prime is 131444773399. The next prime is 131444773423. The reversal of 131444773417 is 714377444131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118214942976 + 13229830441 = 343824^2 + 115021^2 .

It is a cyclic number.

It is not a de Polignac number, because 131444773417 - 2³¹ = 129297289769 is a prime.

It is not a weakly prime, because it can be changed into another prime (131444773717) 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, 65722386708 + 65722386709.

It is an arithmetic number, because the mean of its divisors is an integer number (65722386709).

Almost surely, 2^131444773417 is an apocalyptic number.

It is an amenable number.

131444773417 is a deficient number, since it is larger than the sum of its proper divisors (1).

131444773417 is an equidigital number, since it uses as much as digits as its factorization.

131444773417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 46.

The spelling of 131444773417 in words is "one hundred thirty-one billion, four hundred forty-four million, seven hundred seventy-three thousand, four hundred seventeen".