445200073 has 2 divisors, whose sum is σ = 445200074. Its totient is φ = 445200072.

The previous prime is 445200013. The next prime is 445200079. The reversal of 445200073 is 370002544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225360144 + 219839929 = 15012^2 + 14827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445200073 is a prime.

It is not a weakly prime, because it can be changed into another prime (445200079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222600036 + 222600037.

It is an arithmetic number, because the mean of its divisors is an integer number (222600037).

Almost surely, 2^445200073 is an apocalyptic number.

It is an amenable number.

445200073 is a deficient number, since it is larger than the sum of its proper divisors (1).

445200073 is an equidigital number, since it uses as much as digits as its factorization.

445200073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 445200073 is about 21099.7647617219. The cubic root of 445200073 is about 763.5750728839.

The spelling of 445200073 in words is "four hundred forty-five million, two hundred thousand, seventy-three".