1109045285 has 8 divisors (see below), whose sum is σ = 1363314456. Its totient is φ = 865596160.

The previous prime is 1109045281. The next prime is 1109045309. The reversal of 1109045285 is 5825409011.

It can be written as a sum of positive squares in 4 ways, for example, as 76772644 + 1032272641 = 8762^2 + 32129^2 .

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

It is not a de Polignac number, because 1109045285 - 2² = 1109045281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109045281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2704784 + ... + 2705193.

It is an arithmetic number, because the mean of its divisors is an integer number (170414307).

Almost surely, 2^1109045285 is an apocalyptic number.

It is an amenable number.

1109045285 is a deficient number, since it is larger than the sum of its proper divisors (254269171).

1109045285 is an equidigital number, since it uses as much as digits as its factorization.

1109045285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410023.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 1109045285 is about 33302.3315249849. The cubic root of 1109045285 is about 1035.1018702192.

The spelling of 1109045285 in words is "one billion, one hundred nine million, forty-five thousand, two hundred eighty-five".