105504443 has 4 divisors (see below), whose sum is σ = 115095768. Its totient is φ = 95913120.

The previous prime is 105504419. The next prime is 105504457. The reversal of 105504443 is 344405501.

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

It is a cyclic number.

It is not a de Polignac number, because 105504443 - 2¹⁴ = 105488059 is a prime.

It is a super-2 number, since 2×105504443² = 22262374985480498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105504403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4795646 + ... + 4795667.

It is an arithmetic number, because the mean of its divisors is an integer number (28773942).

Almost surely, 2^105504443 is an apocalyptic number.

105504443 is a deficient number, since it is larger than the sum of its proper divisors (9591325).

105504443 is an equidigital number, since it uses as much as digits as its factorization.

105504443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9591324.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 105504443 is about 10271.5355716660. The cubic root of 105504443 is about 472.5236859061.

Adding to 105504443 its reverse (344405501), we get a palindrome (449909944).

The spelling of 105504443 in words is "one hundred five million, five hundred four thousand, four hundred forty-three".