1042666043 has 2 divisors, whose sum is σ = 1042666044. Its totient is φ = 1042666042.

The previous prime is 1042666007. The next prime is 1042666057. The reversal of 1042666043 is 3406662401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042666043 - 2⁸ = 1042665787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042666243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521333021 + 521333022.

It is an arithmetic number, because the mean of its divisors is an integer number (521333022).

Almost surely, 2^1042666043 is an apocalyptic number.

1042666043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042666043 is an equidigital number, since it uses as much as digits as its factorization.

1042666043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1042666043 is about 32290.3397783300. The cubic root of 1042666043 is about 1014.0244107762.

The spelling of 1042666043 in words is "one billion, forty-two million, six hundred sixty-six thousand, forty-three".