108189081 has 64 divisors (see below), whose sum is σ = 215255040. Its totient is φ = 51865920.

The previous prime is 108189043. The next prime is 108189127. The reversal of 108189081 is 180981801.

It is not a de Polignac number, because 108189081 - 2⁹ = 108188569 is a prime.

It is a super-2 number, since 2×108189081² = 23409754495249122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108189041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25026 + ... + 29028.

It is an arithmetic number, because the mean of its divisors is an integer number (3363360).

Almost surely, 2^108189081 is an apocalyptic number.

108189081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108189081 is a deficient number, since it is larger than the sum of its proper divisors (107065959).

108189081 is a wasteful number, since it uses less digits than its factorization.

108189081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

The square root of 108189081 is about 10401.3980310341. The cubic root of 108189081 is about 476.4980678011.

The spelling of 108189081 in words is "one hundred eight million, one hundred eighty-nine thousand, eighty-one".