1244205227 has 4 divisors (see below), whose sum is σ = 1264602096. Its totient is φ = 1223808360.

The previous prime is 1244205203. The next prime is 1244205233. The reversal of 1244205227 is 7225024421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7225024421 = 83 ⋅87048487.

It is a cyclic number.

It is not a de Polignac number, because 1244205227 - 2¹⁸ = 1243943083 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 1244205227.

It is not an unprimeable number, because it can be changed into a prime (1244205247) 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, 10198343 + ... + 10198464.

It is an arithmetic number, because the mean of its divisors is an integer number (316150524).

Almost surely, 2^1244205227 is an apocalyptic number.

1244205227 is a deficient number, since it is larger than the sum of its proper divisors (20396869).

1244205227 is an equidigital number, since it uses as much as digits as its factorization.

1244205227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20396868.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 1244205227 is about 35273.2933959958. The cubic root of 1244205227 is about 1075.5501714549.

Adding to 1244205227 its reverse (7225024421), we get a palindrome (8469229648).

The spelling of 1244205227 in words is "one billion, two hundred forty-four million, two hundred five thousand, two hundred twenty-seven".