1143065 has 16 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 712320.

The previous prime is 1143061. The next prime is 1143067. The reversal of 1143065 is 5603411.

It is not a de Polignac number, because 1143065 - 2² = 1143061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1100 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2^1143065 is an apocalyptic number.

It is an amenable number.

1143065 is a deficient number, since it is larger than the sum of its proper divisors (567655).

1143065 is a wasteful number, since it uses less digits than its factorization.

1143065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1143065 is about 1069.1421795065. The cubic root of 1143065 is about 104.5579297710.

Adding to 1143065 its reverse (5603411), we get a palindrome (6746476).

The spelling of 1143065 in words is "one million, one hundred forty-three thousand, sixty-five".