112666289 has 2 divisors, whose sum is σ = 112666290. Its totient is φ = 112666288.

The previous prime is 112666271. The next prime is 112666303. The reversal of 112666289 is 982666211.

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., 81306289 + 31360000 = 9017^2 + 5600^2 .

It is an emirp because it is prime and its reverse (982666211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112666289 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (112666249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56333144 + 56333145.

It is an arithmetic number, because the mean of its divisors is an integer number (56333145).

Almost surely, 2^112666289 is an apocalyptic number.

It is an amenable number.

112666289 is a deficient number, since it is larger than the sum of its proper divisors (1).

112666289 is an equidigital number, since it uses as much as digits as its factorization.

112666289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 112666289 is about 10614.4377618412. The cubic root of 112666289 is about 482.9824274506.

The spelling of 112666289 in words is "one hundred twelve million, six hundred sixty-six thousand, two hundred eighty-nine".