108105681 has 8 divisors (see below), whose sum is σ = 150408000. Its totient is φ = 68936912.

The previous prime is 108105677. The next prime is 108105691. The reversal of 108105681 is 186501801.

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 108105681 - 2² = 108105677 is a prime.

It is a super-2 number, since 2×108105681² = 23373676528947522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108105691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783306 + ... + 783443.

It is an arithmetic number, because the mean of its divisors is an integer number (18801000).

Almost surely, 2^108105681 is an apocalyptic number.

It is an amenable number.

108105681 is a deficient number, since it is larger than the sum of its proper divisors (42302319).

108105681 is a wasteful number, since it uses less digits than its factorization.

108105681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566775.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 108105681 is about 10397.3881816541. The cubic root of 108105681 is about 476.3755965549.

The spelling of 108105681 in words is "one hundred eight million, one hundred five thousand, six hundred eighty-one".