1224530761 has 2 divisors, whose sum is σ = 1224530762. Its totient is φ = 1224530760.

The previous prime is 1224530719. The next prime is 1224530773. The reversal of 1224530761 is 1670354221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048464400 + 176066361 = 32380^2 + 13269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224530761 - 2¹¹ = 1224528713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224530701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612265380 + 612265381.

It is an arithmetic number, because the mean of its divisors is an integer number (612265381).

Almost surely, 2^1224530761 is an apocalyptic number.

It is an amenable number.

1224530761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224530761 is an equidigital number, since it uses as much as digits as its factorization.

1224530761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1224530761 is about 34993.2959436518. The cubic root of 1224530761 is about 1069.8508427483.

Adding to 1224530761 its reverse (1670354221), we get a palindrome (2894884982).

The spelling of 1224530761 in words is "one billion, two hundred twenty-four million, five hundred thirty thousand, seven hundred sixty-one".