2261066089 has 2 divisors, whose sum is σ = 2261066090. Its totient is φ = 2261066088.

The previous prime is 2261066069. The next prime is 2261066107. The reversal of 2261066089 is 9806601622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1443392064 + 817674025 = 37992^2 + 28595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261066089 - 2²¹ = 2258968937 is a prime.

It is a super-2 number, since 2×2261066089² = 10224839717651511842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2261066009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130533044 + 1130533045.

It is an arithmetic number, because the mean of its divisors is an integer number (1130533045).

Almost surely, 2^2261066089 is an apocalyptic number.

It is an amenable number.

2261066089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261066089 is an equidigital number, since it uses as much as digits as its factorization.

2261066089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2261066089 is about 47550.6686493471. The cubic root of 2261066089 is about 1312.5154335177.

The spelling of 2261066089 in words is "two billion, two hundred sixty-one million, sixty-six thousand, eighty-nine".