561360243 has 8 divisors (see below), whose sum is σ = 756197008. Its totient is φ = 370381824.

The previous prime is 561360223. The next prime is 561360253. The reversal of 561360243 is 342063165.

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

It is not a de Polignac number, because 561360243 - 2⁵ = 561360211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561360243.

It is not an unprimeable number, because it can be changed into a prime (561360203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964246 + ... + 964827.

It is an arithmetic number, because the mean of its divisors is an integer number (94524626).

Almost surely, 2^561360243 is an apocalyptic number.

561360243 is a deficient number, since it is larger than the sum of its proper divisors (194836765).

561360243 is a wasteful number, since it uses less digits than its factorization.

561360243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929173.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 561360243 is about 23693.0420799019. The cubic root of 561360243 is about 824.9238952754.

It can be divided in two parts, 5613 and 60243, that added together give a palindrome (65856).

The spelling of 561360243 in words is "five hundred sixty-one million, three hundred sixty thousand, two hundred forty-three".