111000289 has 2 divisors, whose sum is σ = 111000290. Its totient is φ = 111000288.

The previous prime is 111000247. The next prime is 111000341. The reversal of 111000289 is 982000111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 47128225 = 7992^2 + 6865^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000289 - 2¹¹ = 110998241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111006289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500144 + 55500145.

It is an arithmetic number, because the mean of its divisors is an integer number (55500145).

Almost surely, 2^111000289 is an apocalyptic number.

It is an amenable number.

111000289 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000289 is an equidigital number, since it uses as much as digits as its factorization.

111000289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 111000289 is about 10535.6674681769. The cubic root of 111000289 is about 480.5899704584.

The spelling of 111000289 in words is "one hundred eleven million, two hundred eighty-nine", and thus it is an aban number.