445001 has 2 divisors, whose sum is σ = 445002.
Its totient is φ = 445000.
The previous prime is 444979. The next prime is 445019. The reversal of 445001 is 100544.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 265225 + 179776 = 515^2 + 424^2
It is a cyclic number.
It is not a de Polignac number, because 445001 - 26 = 444937 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (445021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222500 + 222501.
It is an arithmetic number, because the mean of its divisors is an integer number (222501).
2445001 is an apocalyptic number.
It is an amenable number.
445001 is a deficient number, since it is larger than the sum of its proper divisors (1).
445001 is an equidigital number, since it uses as much as digits as its factorization.
445001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 80, while the sum is 14.
The square root of 445001 is about 667.0839527376.
The cubic root of 445001 is about 76.3461244029.
Adding to 445001 its reverse (100544), we get a palindrome (545545).
The spelling of 445001 in words is "four hundred forty-five thousand, one".