561713 has 2 divisors, whose sum is σ = 561714. Its totient is φ = 561712.

The previous prime is 561703. The next prime is 561733. The reversal of 561713 is 317165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559504 + 2209 = 748^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 561713 - 2¹⁰ = 560689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (561703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280856 + 280857.

It is an arithmetic number, because the mean of its divisors is an integer number (280857).

2⁵⁶¹⁷¹³ is an apocalyptic number.

It is an amenable number.

561713 is a deficient number, since it is larger than the sum of its proper divisors (1).

561713 is an equidigital number, since it uses as much as digits as its factorization.

561713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 23.

The square root of 561713 is about 749.4751496881. The cubic root of 561713 is about 82.5096652282.

Adding to 561713 its reverse (317165), we get a palindrome (878878).

It can be divided in two parts, 561 and 713, that multiplied together give a palindrome (399993).

The spelling of 561713 in words is "five hundred sixty-one thousand, seven hundred thirteen".