108209161 has 8 divisors (see below), whose sum is σ = 114397920. Its totient is φ = 102069792.

The previous prime is 108209159. The next prime is 108209173. The reversal of 108209161 is 161902801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108209161 - 2¹ = 108209159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108209111) 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 7 ways as a sum of consecutive naturals, for example, 7795 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (14299740).

Almost surely, 2^108209161 is an apocalyptic number.

It is an amenable number.

108209161 is a deficient number, since it is larger than the sum of its proper divisors (6188759).

108209161 is a wasteful number, since it uses less digits than its factorization.

108209161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24695.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 108209161 is about 10402.3632411102. The cubic root of 108209161 is about 476.5275454810.

The spelling of 108209161 in words is "one hundred eight million, two hundred nine thousand, one hundred sixty-one".