1166442943 has 2 divisors, whose sum is σ = 1166442944. Its totient is φ = 1166442942.

The previous prime is 1166442931. The next prime is 1166442971. The reversal of 1166442943 is 3492446611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166442943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1166442896 and 1166442905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166442973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583221471 + 583221472.

It is an arithmetic number, because the mean of its divisors is an integer number (583221472).

Almost surely, 2^1166442943 is an apocalyptic number.

1166442943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166442943 is an equidigital number, since it uses as much as digits as its factorization.

1166442943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 1166442943 is about 34153.2274170392. The cubic root of 1166442943 is about 1052.6593039205.

The spelling of 1166442943 in words is "one billion, one hundred sixty-six million, four hundred forty-two thousand, nine hundred forty-three".