1099018 has 4 divisors (see below), whose sum is σ = 1648530. Its totient is φ = 549508.

The previous prime is 1098989. The next prime is 1099031. The reversal of 1099018 is 8109901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1096209 + 2809 = 1047^2 + 53^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274753 + ... + 274756.

2^1099018 is an apocalyptic number.

1099018 is a deficient number, since it is larger than the sum of its proper divisors (549512).

1099018 is an equidigital number, since it uses as much as digits as its factorization.

1099018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549511.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1099018 is about 1048.3405935096. The cubic root of 1099018 is about 103.1972842464.

The spelling of 1099018 in words is "one million, ninety-nine thousand, eighteen".