1224992317 has 2 divisors, whose sum is σ = 1224992318. Its totient is φ = 1224992316.

The previous prime is 1224992291. The next prime is 1224992333. The reversal of 1224992317 is 7132994221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1209578841 + 15413476 = 34779^2 + 3926^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224992317 - 2¹⁹ = 1224468029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1224992317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224942317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612496158 + 612496159.

It is an arithmetic number, because the mean of its divisors is an integer number (612496159).

Almost surely, 2^1224992317 is an apocalyptic number.

It is an amenable number.

1224992317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224992317 is an equidigital number, since it uses as much as digits as its factorization.

1224992317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 1224992317 is about 34999.8902426850. The cubic root of 1224992317 is about 1069.9852436315.

The spelling of 1224992317 in words is "one billion, two hundred twenty-four million, nine hundred ninety-two thousand, three hundred seventeen".