445111 has 4 divisors (see below), whose sum is σ = 471312. Its totient is φ = 418912.

The previous prime is 445103. The next prime is 445141. The reversal of 445111 is 111544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445111 - 2³ = 445103 is a prime.

It is a Duffinian number.

445111 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445141) 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, 13075 + ... + 13108.

It is an arithmetic number, because the mean of its divisors is an integer number (117828).

2⁴⁴⁵¹¹¹ is an apocalyptic number.

445111 is a deficient number, since it is larger than the sum of its proper divisors (26201).

445111 is a wasteful number, since it uses less digits than its factorization.

445111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26200.

The product of its digits is 80, while the sum is 16.

The square root of 445111 is about 667.1663960363. The cubic root of 445111 is about 76.3524145624.

Adding to 445111 its reverse (111544), we get a palindrome (556655).

The spelling of 445111 in words is "four hundred forty-five thousand, one hundred eleven".