1002445573 has 2 divisors, whose sum is σ = 1002445574. Its totient is φ = 1002445572.

The previous prime is 1002445571. The next prime is 1002445589. The reversal of 1002445573 is 3755442001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879834244 + 122611329 = 29662^2 + 11073^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002445573 - 2¹ = 1002445571 is a prime.

Together with 1002445571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002445571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501222786 + 501222787.

It is an arithmetic number, because the mean of its divisors is an integer number (501222787).

Almost surely, 2^1002445573 is an apocalyptic number.

It is an amenable number.

1002445573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002445573 is an equidigital number, since it uses as much as digits as its factorization.

1002445573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1002445573 is about 31661.4208935733. The cubic root of 1002445573 is about 1000.8145273650.

Adding to 1002445573 its reverse (3755442001), we get a palindrome (4757887574).

The spelling of 1002445573 in words is "one billion, two million, four hundred forty-five thousand, five hundred seventy-three".