1224663265 has 16 divisors (see below), whose sum is σ = 1682928000. Its totient is φ = 838074240.

The previous prime is 1224663239. The next prime is 1224663269. The reversal of 1224663265 is 5623664221.

It is not a de Polignac number, because 1224663265 - 2⁷ = 1224663137 is a prime.

It is a super-2 number, since 2×1224663265² = 2999600225280920450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1224663269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17596 + ... + 52525.

It is an arithmetic number, because the mean of its divisors is an integer number (105183000).

Almost surely, 2^1224663265 is an apocalyptic number.

It is an amenable number.

1224663265 is a deficient number, since it is larger than the sum of its proper divisors (458264735).

1224663265 is an equidigital number, since it uses as much as digits as its factorization.

1224663265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70632.

The product of its digits is 103680, while the sum is 37.

The square root of 1224663265 is about 34995.1891693701. The cubic root of 1224663265 is about 1069.8894301560.

The spelling of 1224663265 in words is "one billion, two hundred twenty-four million, six hundred sixty-three thousand, two hundred sixty-five".