1108990563 has 16 divisors (see below), whose sum is σ = 1633706496. Its totient is φ = 665582720.

The previous prime is 1108990489. The next prime is 1108990577. The reversal of 1108990563 is 3650998011.

It is a cyclic number.

It is not a de Polignac number, because 1108990563 - 2¹⁸ = 1108728419 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1108998563) 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, 471543 + ... + 473888.

It is an arithmetic number, because the mean of its divisors is an integer number (102106656).

Almost surely, 2^1108990563 is an apocalyptic number.

1108990563 is a deficient number, since it is larger than the sum of its proper divisors (524715933).

1108990563 is a wasteful number, since it uses less digits than its factorization.

1108990563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945474.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1108990563 is about 33301.5099207228. The cubic root of 1108990563 is about 1035.0848454331.

The spelling of 1108990563 in words is "one billion, one hundred eight million, nine hundred ninety thousand, five hundred sixty-three".