1224232447 has 2 divisors, whose sum is σ = 1224232448. Its totient is φ = 1224232446.

The previous prime is 1224232433. The next prime is 1224232507. The reversal of 1224232447 is 7442324221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224232447 - 2²⁷ = 1090014719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224235447) by changing a digit.

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 as a sum of consecutive naturals, namely, 612116223 + 612116224.

It is an arithmetic number, because the mean of its divisors is an integer number (612116224).

Almost surely, 2^1224232447 is an apocalyptic number.

1224232447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224232447 is an equidigital number, since it uses as much as digits as its factorization.

1224232447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 31.

The square root of 1224232447 is about 34989.0332390022. The cubic root of 1224232447 is about 1069.7639584727.

Adding to 1224232447 its reverse (7442324221), we get a palindrome (8666556668).

The spelling of 1224232447 in words is "one billion, two hundred twenty-four million, two hundred thirty-two thousand, four hundred forty-seven".