1122089 has 2 divisors, whose sum is σ = 1122090. Its totient is φ = 1122088.

The previous prime is 1122071. The next prime is 1122091. The reversal of 1122089 is 9802211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652864 + 469225 = 808^2 + 685^2 .

It is an emirp because it is prime and its reverse (9802211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122089 - 2⁸ = 1121833 is a prime.

Together with 1122091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1122029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561044 + 561045.

It is an arithmetic number, because the mean of its divisors is an integer number (561045).

2^1122089 is an apocalyptic number.

It is an amenable number.

1122089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122089 is an equidigital number, since it uses as much as digits as its factorization.

1122089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1122089 is about 1059.2870243706. The cubic root of 1122089 is about 103.9144081276.

The spelling of 1122089 in words is "one million, one hundred twenty-two thousand, eighty-nine".