1163043 has 12 divisors (see below), whose sum is σ = 1920048. Its totient is φ = 664560.

The previous prime is 1163039. The next prime is 1163069. The reversal of 1163043 is 3403611.

It is not a de Polignac number, because 1163043 - 2² = 1163039 is a prime.

1163043 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1163003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9168 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (160004).

2^1163043 is an apocalyptic number.

1163043 is a deficient number, since it is larger than the sum of its proper divisors (757005).

1163043 is a wasteful number, since it uses less digits than its factorization.

1163043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18474 (or 18471 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1163043 is about 1078.4447134647. Note that the first 3 decimals coincide. The cubic root of 1163043 is about 105.1635546285.

Adding to 1163043 its reverse (3403611), we get a palindrome (4566654).

The spelling of 1163043 in words is "one million, one hundred sixty-three thousand, forty-three".