105442105 has 4 divisors (see below), whose sum is σ = 126530532. Its totient is φ = 84353680.

The previous prime is 105442087. The next prime is 105442111. The reversal of 105442105 is 501244501.

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 43599609 + 61842496 = 6603^2 + 7864^2 .

It is not a de Polignac number, because 105442105 - 2¹¹ = 105440057 is a prime.

It is a super-2 number, since 2×105442105² = 22236075013662050, 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, 10544206 + ... + 10544215.

It is an arithmetic number, because the mean of its divisors is an integer number (31632633).

Almost surely, 2^105442105 is an apocalyptic number.

It is an amenable number.

105442105 is a deficient number, since it is larger than the sum of its proper divisors (21088427).

105442105 is an equidigital number, since it uses as much as digits as its factorization.

105442105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21088426.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105442105 is about 10268.5006208307. The cubic root of 105442105 is about 472.4306029861.

Adding to 105442105 its reverse (501244501), we get a palindrome (606686606).

The spelling of 105442105 in words is "one hundred five million, four hundred forty-two thousand, one hundred five".