1568224013 has 2 divisors, whose sum is σ = 1568224014. Its totient is φ = 1568224012.

The previous prime is 1568223997. The next prime is 1568224079. The reversal of 1568224013 is 3104228651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 890246569 + 677977444 = 29837^2 + 26038^2 .

It is an emirp because it is prime and its reverse (3104228651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1568224013 - 2⁴ = 1568223997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1568214013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784112006 + 784112007.

It is an arithmetic number, because the mean of its divisors is an integer number (784112007).

Almost surely, 2^1568224013 is an apocalyptic number.

It is an amenable number.

1568224013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1568224013 is an equidigital number, since it uses as much as digits as its factorization.

1568224013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1568224013 is about 39600.8082367014. The cubic root of 1568224013 is about 1161.8124690578.

The spelling of 1568224013 in words is "one billion, five hundred sixty-eight million, two hundred twenty-four thousand, thirteen".