1224283939 has 2 divisors, whose sum is σ = 1224283940. Its totient is φ = 1224283938.

The previous prime is 1224283919. The next prime is 1224283993. The reversal of 1224283939 is 9393824221.

Together with next prime (1224283993) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9393824221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224283939 - 2⁷ = 1224283811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224283895 and 1224283904.

It is not a weakly prime, because it can be changed into another prime (1224283909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612141969 + 612141970.

It is an arithmetic number, because the mean of its divisors is an integer number (612141970).

Almost surely, 2^1224283939 is an apocalyptic number.

1224283939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224283939 is an equidigital number, since it uses as much as digits as its factorization.

1224283939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 1224283939 is about 34989.7690618272. The cubic root of 1224283939 is about 1069.7789565812.

The spelling of 1224283939 in words is "one billion, two hundred twenty-four million, two hundred eighty-three thousand, nine hundred thirty-nine".