1224315541 has 2 divisors, whose sum is σ = 1224315542. Its totient is φ = 1224315540.

The previous prime is 1224315527. The next prime is 1224315557. The reversal of 1224315541 is 1455134221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 809174916 + 415140625 = 28446^2 + 20375^2 .

It is an emirp because it is prime and its reverse (1455134221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224315541 - 2²⁹ = 687444629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224319541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612157770 + 612157771.

It is an arithmetic number, because the mean of its divisors is an integer number (612157771).

Almost surely, 2^1224315541 is an apocalyptic number.

It is an amenable number.

1224315541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224315541 is an equidigital number, since it uses as much as digits as its factorization.

1224315541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 28.

The square root of 1224315541 is about 34990.2206480611. The cubic root of 1224315541 is about 1069.7881611082.

Adding to 1224315541 its reverse (1455134221), we get a palindrome (2679449762).

The spelling of 1224315541 in words is "one billion, two hundred twenty-four million, three hundred fifteen thousand, five hundred forty-one".