1143000217 has 2 divisors, whose sum is σ = 1143000218. Its totient is φ = 1143000216.

The previous prime is 1143000193. The next prime is 1143000227. The reversal of 1143000217 is 7120003411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 928055296 + 214944921 = 30464^2 + 14661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143000217 - 2¹¹ = 1142998169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143000194 and 1143000203.

It is not a weakly prime, because it can be changed into another prime (1143000227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571500108 + 571500109.

It is an arithmetic number, because the mean of its divisors is an integer number (571500109).

Almost surely, 2^1143000217 is an apocalyptic number.

It is an amenable number.

1143000217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143000217 is an equidigital number, since it uses as much as digits as its factorization.

1143000217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1143000217 is about 33808.2862180265. The cubic root of 1143000217 is about 1045.5595446646.

Adding to 1143000217 its reverse (7120003411), we get a palindrome (8263003628).

The spelling of 1143000217 in words is "one billion, one hundred forty-three million, two hundred seventeen", and thus it is an aban number.