131440716349 has 2 divisors, whose sum is σ = 131440716350. Its totient is φ = 131440716348.

The previous prime is 131440716299. The next prime is 131440716353. The reversal of 131440716349 is 943617044131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72136290724 + 59304425625 = 268582^2 + 243525^2 .

It is a cyclic number.

It is not a de Polignac number, because 131440716349 - 2³¹ = 129293232701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131440716359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65720358174 + 65720358175.

It is an arithmetic number, because the mean of its divisors is an integer number (65720358175).

Almost surely, 2^131440716349 is an apocalyptic number.

It is an amenable number.

131440716349 is a deficient number, since it is larger than the sum of its proper divisors (1).

131440716349 is an equidigital number, since it uses as much as digits as its factorization.

131440716349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 131440716349 in words is "one hundred thirty-one billion, four hundred forty million, seven hundred sixteen thousand, three hundred forty-nine".