1066751089 has 2 divisors, whose sum is σ = 1066751090. Its totient is φ = 1066751088.

The previous prime is 1066751069. The next prime is 1066751111. The reversal of 1066751089 is 9801576601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 858958864 + 207792225 = 29308^2 + 14415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066751089 - 2⁹ = 1066750577 is a prime.

It is a super-2 number, since 2×1066751089² = 2275915771765371842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066751039) 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, 533375544 + 533375545.

It is an arithmetic number, because the mean of its divisors is an integer number (533375545).

Almost surely, 2^1066751089 is an apocalyptic number.

It is an amenable number.

1066751089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066751089 is an equidigital number, since it uses as much as digits as its factorization.

1066751089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 1066751089 is about 32661.1556592843. The cubic root of 1066751089 is about 1021.7728648263.

The spelling of 1066751089 in words is "one billion, sixty-six million, seven hundred fifty-one thousand, eighty-nine".