445305244009 has 2 divisors, whose sum is σ = 445305244010. Its totient is φ = 445305244008.

The previous prime is 445305244003. The next prime is 445305244049. The reversal of 445305244009 is 900442503544.

It is a happy number.

It is an a-pointer prime, because the next prime (445305244049) can be obtained adding 445305244009 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314275723609 + 131029520400 = 560603^2 + 361980^2 .

It is a cyclic number.

It is not a de Polignac number, because 445305244009 - 2¹¹ = 445305241961 is a prime.

It is not a weakly prime, because it can be changed into another prime (445305244003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222652622004 + 222652622005.

It is an arithmetic number, because the mean of its divisors is an integer number (222652622005).

Almost surely, 2^445305244009 is an apocalyptic number.

It is an amenable number.

445305244009 is a deficient number, since it is larger than the sum of its proper divisors (1).

445305244009 is an equidigital number, since it uses as much as digits as its factorization.

445305244009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 445305244009 in words is "four hundred forty-five billion, three hundred five million, two hundred forty-four thousand, nine".