2243000561 has 4 divisors (see below), whose sum is σ = 2279771124. Its totient is φ = 2206230000.

The previous prime is 2243000537. The next prime is 2243000593. The reversal of 2243000561 is 1650003422.

2243000561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1650003422 = 2 ⋅825001711.

It can be written as a sum of positive squares in 2 ways, for example, as 34000561 + 2209000000 = 5831^2 + 47000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243000561 - 2²² = 2238806257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243000531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18385190 + ... + 18385311.

It is an arithmetic number, because the mean of its divisors is an integer number (569942781).

Almost surely, 2^2243000561 is an apocalyptic number.

It is an amenable number.

2243000561 is a deficient number, since it is larger than the sum of its proper divisors (36770563).

2243000561 is an equidigital number, since it uses as much as digits as its factorization.

2243000561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36770562.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2243000561 is about 47360.3268675376. The cubic root of 2243000561 is about 1309.0104916187.

Adding to 2243000561 its reverse (1650003422), we get a palindrome (3893003983).

The spelling of 2243000561 in words is "two billion, two hundred forty-three million, five hundred sixty-one", and thus it is an aban number.