445223105 has 12 divisors (see below), whose sum is σ = 563869332. Its totient is φ = 337430880.

The previous prime is 445223099. The next prime is 445223117. The reversal of 445223105 is 501322544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 291760561 + 153462544 = 17081^2 + 12388^2 .

It is not a de Polignac number, because 445223105 - 2¹⁰ = 445222081 is a prime.

It is a super-2 number, since 2×445223105² = 396447226451682050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121526 + ... + 125135.

It is an arithmetic number, because the mean of its divisors is an integer number (46989111).

Almost surely, 2^445223105 is an apocalyptic number.

It is an amenable number.

445223105 is a deficient number, since it is larger than the sum of its proper divisors (118646227).

445223105 is a wasteful number, since it uses less digits than its factorization.

445223105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246704 (or 246685 counting only the distinct ones).

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

The square root of 445223105 is about 21100.3105427385. The cubic root of 445223105 is about 763.5882402656.

Adding to 445223105 its reverse (501322544), we get a palindrome (946545649).

The spelling of 445223105 in words is "four hundred forty-five million, two hundred twenty-three thousand, one hundred five".