568481161 has 2 divisors, whose sum is σ = 568481162. Its totient is φ = 568481160.

The previous prime is 568481153. The next prime is 568481203. The reversal of 568481161 is 161184865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499075600 + 69405561 = 22340^2 + 8331^2 .

It is a cyclic number.

It is not a de Polignac number, because 568481161 - 2³ = 568481153 is a prime.

It is not a weakly prime, because it can be changed into another prime (568481141) 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, 284240580 + 284240581.

It is an arithmetic number, because the mean of its divisors is an integer number (284240581).

Almost surely, 2^568481161 is an apocalyptic number.

It is an amenable number.

568481161 is a deficient number, since it is larger than the sum of its proper divisors (1).

568481161 is an equidigital number, since it uses as much as digits as its factorization.

568481161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 40.

The square root of 568481161 is about 23842.8429722632. The cubic root of 568481161 is about 828.3973336495.

The spelling of 568481161 in words is "five hundred sixty-eight million, four hundred eighty-one thousand, one hundred sixty-one".