108129966 has 24 divisors (see below), whose sum is σ = 251568360. Its totient is φ = 30894192.

The previous prime is 108129929. The next prime is 108129977. The reversal of 108129966 is 669921801.

It is a super-2 number, since 2×108129966² = 23384179094322312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183601 + ... + 184188.

It is an arithmetic number, because the mean of its divisors is an integer number (10482015).

Almost surely, 2^108129966 is an apocalyptic number.

108129966 is an abundant number, since it is smaller than the sum of its proper divisors (143438394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108129966 is a wasteful number, since it uses less digits than its factorization.

108129966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367808 (or 367801 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 108129966 is about 10398.5559574395. Note that the first 3 decimals coincide. The cubic root of 108129966 is about 476.4112650942.

The spelling of 108129966 in words is "one hundred eight million, one hundred twenty-nine thousand, nine hundred sixty-six".