1122659 has 2 divisors, whose sum is σ = 1122660. Its totient is φ = 1122658.

The previous prime is 1122647. The next prime is 1122679. The reversal of 1122659 is 9562211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122659 - 2⁴ = 1122643 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1122679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561329 + 561330.

It is an arithmetic number, because the mean of its divisors is an integer number (561330).

2^1122659 is an apocalyptic number.

1122659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122659 is an equidigital number, since it uses as much as digits as its factorization.

1122659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 1122659 is about 1059.5560391032. The cubic root of 1122659 is about 103.9320006674.

The spelling of 1122659 in words is "one million, one hundred twenty-two thousand, six hundred fifty-nine".