109855099 has 4 divisors (see below), whose sum is σ = 109930464. Its totient is φ = 109779736.

The previous prime is 109855091. The next prime is 109855111. The reversal of 109855099 is 990558901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990558901 = 19 ⋅52134679.

It is a cyclic number.

It is not a de Polignac number, because 109855099 - 2³ = 109855091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109855091) 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 3 ways as a sum of consecutive naturals, for example, 35452 + ... + 38425.

It is an arithmetic number, because the mean of its divisors is an integer number (27482616).

Almost surely, 2^109855099 is an apocalyptic number.

109855099 is a deficient number, since it is larger than the sum of its proper divisors (75365).

109855099 is an equidigital number, since it uses as much as digits as its factorization.

109855099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75364.

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 109855099 is about 10481.1783211622. The cubic root of 109855099 is about 478.9315049163.

The spelling of 109855099 in words is "one hundred nine million, eight hundred fifty-five thousand, ninety-nine".