445306133 has 2 divisors, whose sum is σ = 445306134. Its totient is φ = 445306132.

The previous prime is 445306129. The next prime is 445306139. The reversal of 445306133 is 331603544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401521444 + 43784689 = 20038^2 + 6617^2 .

It is a cyclic number.

It is not a de Polignac number, because 445306133 - 2² = 445306129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445306096 and 445306105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445306139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222653066 + 222653067.

It is an arithmetic number, because the mean of its divisors is an integer number (222653067).

Almost surely, 2^445306133 is an apocalyptic number.

It is an amenable number.

445306133 is a deficient number, since it is larger than the sum of its proper divisors (1).

445306133 is an equidigital number, since it uses as much as digits as its factorization.

445306133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 445306133 is about 21102.2779102162. The cubic root of 445306133 is about 763.6357035584.

Adding to 445306133 its reverse (331603544), we get a palindrome (776909677).

The spelling of 445306133 in words is "four hundred forty-five million, three hundred six thousand, one hundred thirty-three".