1143224413 has 2 divisors, whose sum is σ = 1143224414. Its totient is φ = 1143224412.

The previous prime is 1143224377. The next prime is 1143224431. The reversal of 1143224413 is 3144223411.

Together with next prime (1143224431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 691321849 + 451902564 = 26293^2 + 21258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143224413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143224213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571612206 + 571612207.

It is an arithmetic number, because the mean of its divisors is an integer number (571612207).

Almost surely, 2^1143224413 is an apocalyptic number.

It is an amenable number.

1143224413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143224413 is an equidigital number, since it uses as much as digits as its factorization.

1143224413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 1143224413 is about 33811.6017514699. The cubic root of 1143224413 is about 1045.6279012987.

Adding to 1143224413 its reverse (3144223411), we get a palindrome (4287447824).

The spelling of 1143224413 in words is "one billion, one hundred forty-three million, two hundred twenty-four thousand, four hundred thirteen".