109499905 has 16 divisors (see below), whose sum is σ = 137055744. Its totient is φ = 83888640.

The previous prime is 109499903. The next prime is 109499917. The reversal of 109499905 is 509994901.

It is not a de Polignac number, because 109499905 - 2¹ = 109499903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109499903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11394 + ... + 18676.

It is an arithmetic number, because the mean of its divisors is an integer number (8565984).

Almost surely, 2^109499905 is an apocalyptic number.

It is an amenable number.

109499905 is a deficient number, since it is larger than the sum of its proper divisors (27555839).

109499905 is an equidigital number, since it uses as much as digits as its factorization.

109499905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7416.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 109499905 is about 10464.2202289516. The cubic root of 109499905 is about 478.4147719015.

The spelling of 109499905 in words is "one hundred nine million, four hundred ninety-nine thousand, nine hundred five".