443520013 has 2 divisors, whose sum is σ = 443520014. Its totient is φ = 443520012.

The previous prime is 443519969. The next prime is 443520023. The reversal of 443520013 is 310025344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261080964 + 182439049 = 16158^2 + 13507^2 .

It is a cyclic number.

It is not a de Polignac number, because 443520013 - 2¹³ = 443511821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443520023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221760006 + 221760007.

It is an arithmetic number, because the mean of its divisors is an integer number (221760007).

Almost surely, 2^443520013 is an apocalyptic number.

It is an amenable number.

443520013 is a deficient number, since it is larger than the sum of its proper divisors (1).

443520013 is an equidigital number, since it uses as much as digits as its factorization.

443520013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 443520013 is about 21059.9148383843. The cubic root of 443520013 is about 762.6133561831.

Adding to 443520013 its reverse (310025344), we get a palindrome (753545357).

The spelling of 443520013 in words is "four hundred forty-three million, five hundred twenty thousand, thirteen".