1109841563 has 16 divisors (see below), whose sum is σ = 1170892800. Its totient is φ = 1049917440.

The previous prime is 1109841559. The next prime is 1109841569. The reversal of 1109841563 is 3651489011.

It is a cyclic number.

It is not a de Polignac number, because 1109841563 - 2² = 1109841559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109841569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442843 + ... + 1443611.

It is an arithmetic number, because the mean of its divisors is an integer number (73180800).

Almost surely, 2^1109841563 is an apocalyptic number.

1109841563 is a deficient number, since it is larger than the sum of its proper divisors (61051237).

1109841563 is a wasteful number, since it uses less digits than its factorization.

1109841563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1109841563 is about 33314.2846688924. The cubic root of 1109841563 is about 1035.3495401973.

The spelling of 1109841563 in words is "one billion, one hundred nine million, eight hundred forty-one thousand, five hundred sixty-three".