561210241 has 2 divisors, whose sum is σ = 561210242. Its totient is φ = 561210240.

The previous prime is 561210179. The next prime is 561210253. The reversal of 561210241 is 142012165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556016400 + 5193841 = 23580^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 561210241 - 2⁷ = 561210113 is a prime.

It is not a weakly prime, because it can be changed into another prime (561210941) 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, 280605120 + 280605121.

It is an arithmetic number, because the mean of its divisors is an integer number (280605121).

Almost surely, 2^561210241 is an apocalyptic number.

It is an amenable number.

561210241 is a deficient number, since it is larger than the sum of its proper divisors (1).

561210241 is an equidigital number, since it uses as much as digits as its factorization.

561210241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 561210241 is about 23689.8763399052. The cubic root of 561210241 is about 824.8504123032.

The spelling of 561210241 in words is "five hundred sixty-one million, two hundred ten thousand, two hundred forty-one".