105544105 has 4 divisors (see below), whose sum is σ = 126652932. Its totient is φ = 84435280.

The previous prime is 105544081. The next prime is 105544111. The reversal of 105544105 is 501445501.

It is a happy number.

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 47844889 + 57699216 = 6917^2 + 7596^2 .

It is not a de Polignac number, because 105544105 - 2¹¹ = 105542057 is a prime.

It is a super-2 number, since 2×105544105² = 22279116200502050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105544105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10554406 + ... + 10554415.

It is an arithmetic number, because the mean of its divisors is an integer number (31663233).

Almost surely, 2^105544105 is an apocalyptic number.

It is an amenable number.

105544105 is a deficient number, since it is larger than the sum of its proper divisors (21108827).

105544105 is an equidigital number, since it uses as much as digits as its factorization.

105544105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21108826.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 105544105 is about 10273.4660655496. The cubic root of 105544105 is about 472.5828900052.

Adding to 105544105 its reverse (501445501), we get a palindrome (606989606).

The spelling of 105544105 in words is "one hundred five million, five hundred forty-four thousand, one hundred five".