109803618 has 12 divisors (see below), whose sum is σ = 237907878. Its totient is φ = 36601200.

The previous prime is 109803611. The next prime is 109803653. The reversal of 109803618 is 816308901.

It can be written as a sum of positive squares in only one way, i.e., 104591529 + 5212089 = 10227^2 + 2283^2 .

It is not an unprimeable number, because it can be changed into a prime (109803611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3050083 + ... + 3050118.

Almost surely, 2^109803618 is an apocalyptic number.

109803618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

109803618 is an abundant number, since it is smaller than the sum of its proper divisors (128104260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109803618 is a wasteful number, since it uses less digits than its factorization.

109803618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100209 (or 6100206 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 109803618 is about 10478.7221549195. The cubic root of 109803618 is about 478.8566799105.

The spelling of 109803618 in words is "one hundred nine million, eight hundred three thousand, six hundred eighteen".