1224271 has 2 divisors, whose sum is σ = 1224272. Its totient is φ = 1224270.

The previous prime is 1224269. The next prime is 1224281. The reversal of 1224271 is 1724221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1724221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224271 - 2¹ = 1224269 is a prime.

Together with 1224269, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

1224271 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612135 + 612136.

It is an arithmetic number, because the mean of its divisors is an integer number (612136).

2^1224271 is an apocalyptic number.

1224271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224271 is an equidigital number, since it uses as much as digits as its factorization.

1224271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 19.

The square root of 1224271 is about 1106.4678034177. The cubic root of 1224271 is about 106.9775187870.

Adding to 1224271 its reverse (1724221), we get a palindrome (2948492).

The spelling of 1224271 in words is "one million, two hundred twenty-four thousand, two hundred seventy-one".