1443105481 has 2 divisors, whose sum is σ = 1443105482. Its totient is φ = 1443105480.

The previous prime is 1443105463. The next prime is 1443105497. The reversal of 1443105481 is 1845013441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992817081 + 450288400 = 31509^2 + 21220^2 .

It is an emirp because it is prime and its reverse (1845013441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1443105481 - 2⁵ = 1443105449 is a prime.

It is a super-2 number, since 2×1443105481² = 4165106858584482722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1443105451) 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, 721552740 + 721552741.

It is an arithmetic number, because the mean of its divisors is an integer number (721552741).

Almost surely, 2^1443105481 is an apocalyptic number.

It is an amenable number.

1443105481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443105481 is an equidigital number, since it uses as much as digits as its factorization.

1443105481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1443105481 is about 37988.2281897958. The cubic root of 1443105481 is about 1130.0544211136.

The spelling of 1443105481 in words is "one billion, four hundred forty-three million, one hundred five thousand, four hundred eighty-one".