109988305 has 16 divisors (see below), whose sum is σ = 151640064. Its totient is φ = 75021120.

The previous prime is 109988299. The next prime is 109988327. The reversal of 109988305 is 503889901.

It is not a de Polignac number, because 109988305 - 2⁵ = 109988273 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 1542 + ... + 14911.

It is an arithmetic number, because the mean of its divisors is an integer number (9477504).

Almost surely, 2^109988305 is an apocalyptic number.

It is an amenable number.

109988305 is a deficient number, since it is larger than the sum of its proper divisors (41651759).

109988305 is a wasteful number, since it uses less digits than its factorization.

109988305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16656.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 109988305 is about 10487.5309296326. The cubic root of 109988305 is about 479.1250046029.

The spelling of 109988305 in words is "one hundred nine million, nine hundred eighty-eight thousand, three hundred five".