1224258769 has 2 divisors, whose sum is σ = 1224258770. Its totient is φ = 1224258768.

The previous prime is 1224258733. The next prime is 1224258781. The reversal of 1224258769 is 9678524221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 919302400 + 304956369 = 30320^2 + 17463^2 .

It is an emirp because it is prime and its reverse (9678524221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224258769 is a prime.

It is a super-2 number, since 2×1224258769² = 2997619066946790722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1224258869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612129384 + 612129385.

It is an arithmetic number, because the mean of its divisors is an integer number (612129385).

Almost surely, 2^1224258769 is an apocalyptic number.

It is an amenable number.

1224258769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224258769 is an equidigital number, since it uses as much as digits as its factorization.

1224258769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 1224258769 is about 34989.4093834120. The cubic root of 1224258769 is about 1069.7716253514.

The spelling of 1224258769 in words is "one billion, two hundred twenty-four million, two hundred fifty-eight thousand, seven hundred sixty-nine".