243035144449 has 2 divisors, whose sum is σ = 243035144450. Its totient is φ = 243035144448.

The previous prime is 243035144447. The next prime is 243035144531. The reversal of 243035144449 is 944441530342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217582132849 + 25453011600 = 466457^2 + 159540^2 .

It is a cyclic number.

It is not a de Polignac number, because 243035144449 - 2¹ = 243035144447 is a prime.

Together with 243035144447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (243035144447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121517572224 + 121517572225.

It is an arithmetic number, because the mean of its divisors is an integer number (121517572225).

Almost surely, 2^243035144449 is an apocalyptic number.

It is an amenable number.

243035144449 is a deficient number, since it is larger than the sum of its proper divisors (1).

243035144449 is an equidigital number, since it uses as much as digits as its factorization.

243035144449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 243035144449 in words is "two hundred forty-three billion, thirty-five million, one hundred forty-four thousand, four hundred forty-nine".