445122113 has 4 divisors (see below), whose sum is σ = 446096580. Its totient is φ = 444147648.

The previous prime is 445122089. The next prime is 445122121. The reversal of 445122113 is 311221544.

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 167133184 + 277988929 = 12928^2 + 16673^2 .

It is a cyclic number.

It is not a de Polignac number, because 445122113 - 2¹⁸ = 444859969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445122133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486548 + ... + 487461.

It is an arithmetic number, because the mean of its divisors is an integer number (111524145).

Almost surely, 2^445122113 is an apocalyptic number.

It is an amenable number.

445122113 is a deficient number, since it is larger than the sum of its proper divisors (974467).

445122113 is an equidigital number, since it uses as much as digits as its factorization.

445122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974466.

The product of its digits is 960, while the sum is 23.

The square root of 445122113 is about 21097.9172668773. The cubic root of 445122113 is about 763.5304998247.

Adding to 445122113 its reverse (311221544), we get a palindrome (756343657).

The spelling of 445122113 in words is "four hundred forty-five million, one hundred twenty-two thousand, one hundred thirteen".