105207445 has 16 divisors (see below), whose sum is σ = 146320128. Its totient is φ = 71124480.

The previous prime is 105207437. The next prime is 105207457. The reversal of 105207445 is 544702501.

It is not a de Polignac number, because 105207445 - 2³ = 105207437 is a prime.

It is a super-2 number, since 2×105207445² = 22137212966856050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18684 + ... + 23653.

It is an arithmetic number, because the mean of its divisors is an integer number (9145008).

Almost surely, 2^105207445 is an apocalyptic number.

It is an amenable number.

105207445 is a deficient number, since it is larger than the sum of its proper divisors (41112683).

105207445 is an equidigital number, since it uses as much as digits as its factorization.

105207445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42420.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 105207445 is about 10257.0680508613. The cubic root of 105207445 is about 472.0798800097.

Adding to 105207445 its reverse (544702501), we get a palindrome (649909946).

The spelling of 105207445 in words is "one hundred five million, two hundred seven thousand, four hundred forty-five".