241716561 has 4 divisors (see below), whose sum is σ = 322288752. Its totient is φ = 161144372.

The previous prime is 241716529. The next prime is 241716577. The reversal of 241716561 is 165617142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 241716561 - 2⁵ = 241716529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (241716521) 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 in 3 ways as a sum of consecutive naturals, for example, 40286091 + ... + 40286096.

It is an arithmetic number, because the mean of its divisors is an integer number (80572188).

Almost surely, 2^241716561 is an apocalyptic number.

It is an amenable number.

241716561 is a deficient number, since it is larger than the sum of its proper divisors (80572191).

241716561 is an equidigital number, since it uses as much as digits as its factorization.

241716561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80572190.

The product of its digits is 10080, while the sum is 33.

The square root of 241716561 is about 15547.2364425322. The cubic root of 241716561 is about 622.9245812342.

The spelling of 241716561 in words is "two hundred forty-one million, seven hundred sixteen thousand, five hundred sixty-one".