445441133 has 2 divisors, whose sum is σ = 445441134. Its totient is φ = 445441132.

The previous prime is 445441121. The next prime is 445441153. The reversal of 445441133 is 331144544.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238455364 + 206985769 = 15442^2 + 14387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445441133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445441096 and 445441105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445441153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222720566 + 222720567.

It is an arithmetic number, because the mean of its divisors is an integer number (222720567).

Almost surely, 2^445441133 is an apocalyptic number.

It is an amenable number.

445441133 is a deficient number, since it is larger than the sum of its proper divisors (1).

445441133 is an equidigital number, since it uses as much as digits as its factorization.

445441133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 29.

The square root of 445441133 is about 21105.4763746285. The cubic root of 445441133 is about 763.7128642623.

Adding to 445441133 its reverse (331144544), we get a palindrome (776585677).

The spelling of 445441133 in words is "four hundred forty-five million, four hundred forty-one thousand, one hundred thirty-three".