1121089 has 8 divisors (see below), whose sum is σ = 1186560. Its totient is φ = 1057056.

The previous prime is 1121083. The next prime is 1121093. The reversal of 1121089 is 9801211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121089 - 2⁷ = 1120961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1509 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (148320).

2^1121089 is an apocalyptic number.

It is an amenable number.

1121089 is a deficient number, since it is larger than the sum of its proper divisors (65471).

1121089 is an equidigital number, since it uses as much as digits as its factorization.

1121089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

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

The square root of 1121089 is about 1058.8149035596. The cubic root of 1121089 is about 103.8835296225.

The spelling of 1121089 in words is "one million, one hundred twenty-one thousand, eighty-nine".