131984443 has 2 divisors, whose sum is σ = 131984444. Its totient is φ = 131984442.

The previous prime is 131984441. The next prime is 131984449. The reversal of 131984443 is 344489131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131984443 - 2¹ = 131984441 is a prime.

Together with 131984441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131984441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65992221 + 65992222.

It is an arithmetic number, because the mean of its divisors is an integer number (65992222).

Almost surely, 2^131984443 is an apocalyptic number.

131984443 is a deficient number, since it is larger than the sum of its proper divisors (1).

131984443 is an equidigital number, since it uses as much as digits as its factorization.

131984443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 131984443 is about 11488.4482416034. The cubic root of 131984443 is about 509.1443334791.

The spelling of 131984443 in words is "one hundred thirty-one million, nine hundred eighty-four thousand, four hundred forty-three".