1224605265 has 48 divisors (see below), whose sum is σ = 2133528192. Its totient is φ = 599519232.

The previous prime is 1224605237. The next prime is 1224605279. The reversal of 1224605265 is 5625064221.

It is not a de Polignac number, because 1224605265 - 2⁸ = 1224605009 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 488004 + ... + 490506.

It is an arithmetic number, because the mean of its divisors is an integer number (44448504).

Almost surely, 2^1224605265 is an apocalyptic number.

1224605265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224605265 is a deficient number, since it is larger than the sum of its proper divisors (908922927).

1224605265 is a wasteful number, since it uses less digits than its factorization.

1224605265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2717 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1224605265 is about 34994.3604742250. The cubic root of 1224605265 is about 1069.8725399168.

Adding to 1224605265 its reverse (5625064221), we get a palindrome (6849669486).

The spelling of 1224605265 in words is "one billion, two hundred twenty-four million, six hundred five thousand, two hundred sixty-five".