1143208903 has 2 divisors, whose sum is σ = 1143208904. Its totient is φ = 1143208902.

The previous prime is 1143208897. The next prime is 1143208933. The reversal of 1143208903 is 3098023411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143208903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143208933) 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, 571604451 + 571604452.

It is an arithmetic number, because the mean of its divisors is an integer number (571604452).

Almost surely, 2^1143208903 is an apocalyptic number.

1143208903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143208903 is an equidigital number, since it uses as much as digits as its factorization.

1143208903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1143208903 is about 33811.3723915490. The cubic root of 1143208903 is about 1045.6231726377.

The spelling of 1143208903 in words is "one billion, one hundred forty-three million, two hundred eight thousand, nine hundred three".