1224354253 has 4 divisors (see below), whose sum is σ = 1245106080. Its totient is φ = 1203602428.

The previous prime is 1224354251. The next prime is 1224354283. The reversal of 1224354253 is 3524534221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1224354253 - 2¹ = 1224354251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224354251) 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, 10375825 + ... + 10375942.

It is an arithmetic number, because the mean of its divisors is an integer number (311276520).

Almost surely, 2^1224354253 is an apocalyptic number.

It is an amenable number.

1224354253 is a deficient number, since it is larger than the sum of its proper divisors (20751827).

1224354253 is an equidigital number, since it uses as much as digits as its factorization.

1224354253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20751826.

The product of its digits is 28800, while the sum is 31.

The square root of 1224354253 is about 34990.7738268247. The cubic root of 1224354253 is about 1069.7994363069.

Adding to 1224354253 its reverse (3524534221), we get a palindrome (4748888474).

The spelling of 1224354253 in words is "one billion, two hundred twenty-four million, three hundred fifty-four thousand, two hundred fifty-three".