109243618 has 16 divisors (see below), whose sum is σ = 179801856. Its totient is φ = 49367440.

The previous prime is 109243591. The next prime is 109243621. The reversal of 109243618 is 816342901.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10546 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (11237616).

Almost surely, 2^109243618 is an apocalyptic number.

109243618 is a deficient number, since it is larger than the sum of its proper divisors (70558238).

109243618 is a wasteful number, since it uses less digits than its factorization.

109243618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28889.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 109243618 is about 10451.9671832627. The cubic root of 109243618 is about 478.0412334662.

The spelling of 109243618 in words is "one hundred nine million, two hundred forty-three thousand, six hundred eighteen".