1143089 has 2 divisors, whose sum is σ = 1143090. Its totient is φ = 1143088.

The previous prime is 1143073. The next prime is 1143091. The reversal of 1143089 is 9803411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 664225 + 478864 = 815^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143089 - 2⁴ = 1143073 is a prime.

Together with 1143091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1143019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571544 + 571545.

It is an arithmetic number, because the mean of its divisors is an integer number (571545).

2^1143089 is an apocalyptic number.

It is an amenable number.

1143089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143089 is an equidigital number, since it uses as much as digits as its factorization.

1143089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1143089 is about 1069.1534033992. The cubic root of 1143089 is about 104.5586615383.

The spelling of 1143089 in words is "one million, one hundred forty-three thousand, eighty-nine".