563140681 has 2 divisors, whose sum is σ = 563140682. Its totient is φ = 563140680.

The previous prime is 563140621. The next prime is 563140709. The reversal of 563140681 is 186041365.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485982025 + 77158656 = 22045^2 + 8784^2 .

It is a cyclic number.

It is not a de Polignac number, because 563140681 - 2⁷ = 563140553 is a prime.

It is a super-2 number, since 2×563140681² = 634254853194287522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (563140621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281570340 + 281570341.

It is an arithmetic number, because the mean of its divisors is an integer number (281570341).

Almost surely, 2^563140681 is an apocalyptic number.

It is an amenable number.

563140681 is a deficient number, since it is larger than the sum of its proper divisors (1).

563140681 is an equidigital number, since it uses as much as digits as its factorization.

563140681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 563140681 is about 23730.5853488699. The cubic root of 563140681 is about 825.7950980592.

The spelling of 563140681 in words is "five hundred sixty-three million, one hundred forty thousand, six hundred eighty-one".