1121444009 has 8 divisors (see below), whose sum is σ = 1281856128. Its totient is φ = 961083360.

The previous prime is 1121443991. The next prime is 1121444021. The reversal of 1121444009 is 9004441211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121444009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121444099) 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, 66389 + ... + 81549.

It is an arithmetic number, because the mean of its divisors is an integer number (160232016).

Almost surely, 2^1121444009 is an apocalyptic number.

It is an amenable number.

1121444009 is a deficient number, since it is larger than the sum of its proper divisors (160412119).

1121444009 is a wasteful number, since it uses less digits than its factorization.

1121444009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25735.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1121444009 is about 33487.9681228945. The cubic root of 1121444009 is about 1038.9449387121.

The spelling of 1121444009 in words is "one billion, one hundred twenty-one million, four hundred forty-four thousand, nine".