1224252503 has 4 divisors (see below), whose sum is σ = 1241495568. Its totient is φ = 1207009440.

The previous prime is 1224252499. The next prime is 1224252529. The reversal of 1224252503 is 3052524221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3052524221 = 67 ⋅45560063.

It is a cyclic number.

It is not a de Polignac number, because 1224252503 - 2² = 1224252499 is a prime.

It is a super-2 number, since 2×1224252503² = 2997588382203530018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224252553) 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, 8621426 + ... + 8621567.

It is an arithmetic number, because the mean of its divisors is an integer number (310373892).

Almost surely, 2^1224252503 is an apocalyptic number.

1224252503 is a deficient number, since it is larger than the sum of its proper divisors (17243065).

1224252503 is an equidigital number, since it uses as much as digits as its factorization.

1224252503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17243064.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1224252503 is about 34989.3198419175. The cubic root of 1224252503 is about 1069.7698002469.

Adding to 1224252503 its reverse (3052524221), we get a palindrome (4276776724).

The spelling of 1224252503 in words is "one billion, two hundred twenty-four million, two hundred fifty-two thousand, five hundred three".