2244707561 has 4 divisors (see below), whose sum is σ = 2322111300. Its totient is φ = 2167303824.

The previous prime is 2244707513. The next prime is 2244707593. The reversal of 2244707561 is 1657074422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 790734400 + 1453973161 = 28120^2 + 38131^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244707561 - 2⁶ = 2244707497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2244707161) 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, 38701826 + ... + 38701883.

It is an arithmetic number, because the mean of its divisors is an integer number (580527825).

Almost surely, 2^2244707561 is an apocalyptic number.

It is an amenable number.

2244707561 is a deficient number, since it is larger than the sum of its proper divisors (77403739).

2244707561 is an equidigital number, since it uses as much as digits as its factorization.

2244707561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77403738.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 2244707561 is about 47378.3448528967. The cubic root of 2244707561 is about 1309.3424746401.

The spelling of 2244707561 in words is "two billion, two hundred forty-four million, seven hundred seven thousand, five hundred sixty-one".