1224074309 has 2 divisors, whose sum is σ = 1224074310. Its totient is φ = 1224074308.

The previous prime is 1224074233. The next prime is 1224074317. The reversal of 1224074309 is 9034704221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688012900 + 536061409 = 26230^2 + 23153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224074309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224071309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612037154 + 612037155.

It is an arithmetic number, because the mean of its divisors is an integer number (612037155).

Almost surely, 2^1224074309 is an apocalyptic number.

It is an amenable number.

1224074309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224074309 is an equidigital number, since it uses as much as digits as its factorization.

1224074309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1224074309 is about 34986.7733436509. The cubic root of 1224074309 is about 1069.7178948846.

The spelling of 1224074309 in words is "one billion, two hundred twenty-four million, seventy-four thousand, three hundred nine".