2243506547 has 4 divisors (see below), whose sum is σ = 2243944920. Its totient is φ = 2243068176.

The previous prime is 2243506477. The next prime is 2243506579. The reversal of 2243506547 is 7456053422.

2243506547 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: 7456053422 = 2 ⋅3728026711.

It is a cyclic number.

It is not a de Polignac number, because 2243506547 - 2²⁴ = 2226729331 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 2243506547.

It is not an unprimeable number, because it can be changed into a prime (2243506747) 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, 211418 + ... + 221775.

It is an arithmetic number, because the mean of its divisors is an integer number (560986230).

Almost surely, 2^2243506547 is an apocalyptic number.

2243506547 is a deficient number, since it is larger than the sum of its proper divisors (438373).

2243506547 is an equidigital number, since it uses as much as digits as its factorization.

2243506547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438372.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 2243506547 is about 47365.6684424489. The cubic root of 2243506547 is about 1309.1089150127.

Adding to 2243506547 its reverse (7456053422), we get a palindrome (9699559969).

The spelling of 2243506547 in words is "two billion, two hundred forty-three million, five hundred six thousand, five hundred forty-seven".