1099563089 has 2 divisors, whose sum is σ = 1099563090. Its totient is φ = 1099563088.

The previous prime is 1099563083. The next prime is 1099563097. The reversal of 1099563089 is 9803659901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 949132864 + 150430225 = 30808^2 + 12265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1099563089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1099563083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549781544 + 549781545.

It is an arithmetic number, because the mean of its divisors is an integer number (549781545).

Almost surely, 2^1099563089 is an apocalyptic number.

It is an amenable number.

1099563089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099563089 is an equidigital number, since it uses as much as digits as its factorization.

1099563089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 1099563089 is about 33159.6605682266. The cubic root of 1099563089 is about 1032.1434262855.

The spelling of 1099563089 in words is "one billion, ninety-nine million, five hundred sixty-three thousand, eighty-nine".