445441131 has 24 divisors (see below), whose sum is σ = 666787680. Its totient is φ = 286210176.

The previous prime is 445441121. The next prime is 445441133. The reversal of 445441131 is 131144544.

445441131 is a `hidden beast` number, since 4 + 4 + 544 + 113 + 1 = 666.

It is not a de Polignac number, because 445441131 - 2²³ = 437052523 is a prime.

It is a super-2 number, since 2×445441131² = 396835602373118322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445441095 and 445441104.

It is not an unprimeable number, because it can be changed into a prime (445441133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192775 + ... + 195071.

It is an arithmetic number, because the mean of its divisors is an integer number (27782820).

Almost surely, 2^445441131 is an apocalyptic number.

445441131 is a deficient number, since it is larger than the sum of its proper divisors (221346549).

445441131 is a wasteful number, since it uses less digits than its factorization.

445441131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075 (or 3072 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 445441131 is about 21105.4763272474. The cubic root of 445441131 is about 763.7128631193.

Adding to 445441131 its reverse (131144544), we get a palindrome (576585675).

The spelling of 445441131 in words is "four hundred forty-five million, four hundred forty-one thousand, one hundred thirty-one".