2243130665 has 4 divisors (see below), whose sum is σ = 2691756804. Its totient is φ = 1794504528.

The previous prime is 2243130649. The next prime is 2243130667. The reversal of 2243130665 is 5660313422.

2243130665 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: 5660313422 = 2 ⋅2830156711.

It can be written as a sum of positive squares in 2 ways, for example, as 386554921 + 1856575744 = 19661^2 + 43088^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243130665 - 2⁴ = 2243130649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243130667) 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, 224313062 + ... + 224313071.

It is an arithmetic number, because the mean of its divisors is an integer number (672939201).

Almost surely, 2^2243130665 is an apocalyptic number.

It is an amenable number.

2243130665 is a deficient number, since it is larger than the sum of its proper divisors (448626139).

2243130665 is an equidigital number, since it uses as much as digits as its factorization.

2243130665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448626138.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2243130665 is about 47361.7004023293. The cubic root of 2243130665 is about 1309.0358006045.

The spelling of 2243130665 in words is "two billion, two hundred forty-three million, one hundred thirty thousand, six hundred sixty-five".