1143155413 has 2 divisors, whose sum is σ = 1143155414. Its totient is φ = 1143155412.

The previous prime is 1143155401. The next prime is 1143155417. The reversal of 1143155413 is 3145513411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 809800849 + 333354564 = 28457^2 + 18258^2 .

It is an emirp because it is prime and its reverse (3145513411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143155413 - 2⁵ = 1143155381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143155417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571577706 + 571577707.

It is an arithmetic number, because the mean of its divisors is an integer number (571577707).

Almost surely, 2^1143155413 is an apocalyptic number.

It is an amenable number.

1143155413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143155413 is an equidigital number, since it uses as much as digits as its factorization.

1143155413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

The square root of 1143155413 is about 33810.5813762497. The cubic root of 1143155413 is about 1045.6068643743.

Adding to 1143155413 its reverse (3145513411), we get a palindrome (4288668824).

The spelling of 1143155413 in words is "one billion, one hundred forty-three million, one hundred fifty-five thousand, four hundred thirteen".