105405305 has 4 divisors (see below), whose sum is σ = 126486372. Its totient is φ = 84324240.

The previous prime is 105405283. The next prime is 105405323. The reversal of 105405305 is 503504501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503504501 = 43 ⋅11709407.

It can be written as a sum of positive squares in 2 ways, for example, as 27206656 + 78198649 = 5216^2 + 8843^2 .

It is not a de Polignac number, because 105405305 - 2⁶ = 105405241 is a prime.

It is a super-2 number, since 2×105405305² = 22220556644286050, which contains 22 as substring.

It is a Duffinian number.

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, 10540526 + ... + 10540535.

It is an arithmetic number, because the mean of its divisors is an integer number (31621593).

Almost surely, 2^105405305 is an apocalyptic number.

It is an amenable number.

105405305 is a deficient number, since it is larger than the sum of its proper divisors (21081067).

105405305 is an equidigital number, since it uses as much as digits as its factorization.

105405305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21081066.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 105405305 is about 10266.7085767543. The cubic root of 105405305 is about 472.3756361107.

Adding to 105405305 its reverse (503504501), we get a palindrome (608909806).

The spelling of 105405305 in words is "one hundred five million, four hundred five thousand, three hundred five".