445229 has 2 divisors, whose sum is σ = 445230. Its totient is φ = 445228.

The previous prime is 445199. The next prime is 445261. The reversal of 445229 is 922544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 91204 = 595^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 445229 - 2¹⁶ = 379693 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 445198 and 445207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222614 + 222615.

It is an arithmetic number, because the mean of its divisors is an integer number (222615).

2⁴⁴⁵²²⁹ is an apocalyptic number.

It is an amenable number.

445229 is a deficient number, since it is larger than the sum of its proper divisors (1).

445229 is an equidigital number, since it uses as much as digits as its factorization.

445229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 445229 is about 667.2548238866. The cubic root of 445229 is about 76.3591610361.

The spelling of 445229 in words is "four hundred forty-five thousand, two hundred twenty-nine".