1443105345449 has 4 divisors (see below), whose sum is σ = 1445538913236. Its totient is φ = 1440671777664.

The previous prime is 1443105345377. The next prime is 1443105345469. The reversal of 1443105345449 is 9445435013441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 777999853849 + 665105491600 = 882043^2 + 815540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443105345449 - 2³² = 1438810378153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443105345469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216783004 + ... + 1216784189.

It is an arithmetic number, because the mean of its divisors is an integer number (361384728309).

Almost surely, 2^{1443105345449} is an apocalyptic number.

It is an amenable number.

1443105345449 is a deficient number, since it is larger than the sum of its proper divisors (2433567787).

1443105345449 is an equidigital number, since it uses as much as digits as its factorization.

1443105345449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433567786.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 1443105345449 in words is "one trillion, four hundred forty-three billion, one hundred five million, three hundred forty-five thousand, four hundred forty-nine".