1243224227 has 6 divisors (see below), whose sum is σ = 1446199668. Its totient is φ = 1065620724.

The previous prime is 1243224211. The next prime is 1243224253. The reversal of 1243224227 is 7224223421.

It is not a de Polignac number, because 1243224227 - 2⁴ = 1243224211 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 1243224227.

It is not an unprimeable number, because it can be changed into a prime (1243224277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12685913 + ... + 12686010.

It is an arithmetic number, because the mean of its divisors is an integer number (241033278).

Almost surely, 2^1243224227 is an apocalyptic number.

1243224227 is a deficient number, since it is larger than the sum of its proper divisors (202975441).

1243224227 is an equidigital number, since it uses as much as digits as its factorization.

1243224227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25371937 (or 25371930 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 1243224227 is about 35259.3849492585. The cubic root of 1243224227 is about 1075.2674227785.

Adding to 1243224227 its reverse (7224223421), we get a palindrome (8467447648).

The spelling of 1243224227 in words is "one billion, two hundred forty-three million, two hundred twenty-four thousand, two hundred twenty-seven".