561316841 has 8 divisors (see below), whose sum is σ = 570141504. Its totient is φ = 552517840.

The previous prime is 561316781. The next prime is 561316849. The reversal of 561316841 is 148613165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561316841 - 2²⁶ = 494207977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561316849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40310 + ... + 52416.

It is an arithmetic number, because the mean of its divisors is an integer number (71267688).

Almost surely, 2^561316841 is an apocalyptic number.

It is an amenable number.

561316841 is a deficient number, since it is larger than the sum of its proper divisors (8824663).

561316841 is a wasteful number, since it uses less digits than its factorization.

561316841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12831.

The product of its digits is 17280, while the sum is 35.

The square root of 561316841 is about 23692.1261392894. The cubic root of 561316841 is about 824.9026348518.

The spelling of 561316841 in words is "five hundred sixty-one million, three hundred sixteen thousand, eight hundred forty-one".