129106808 has 8 divisors (see below), whose sum is σ = 242075280. Its totient is φ = 64553400.

The previous prime is 129106759. The next prime is 129106829. The reversal of 129106808 is 808601921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8069168 + ... + 8069183.

It is an arithmetic number, because the mean of its divisors is an integer number (30259410).

Almost surely, 2^129106808 is an apocalyptic number.

It is an amenable number.

129106808 is a deficient number, since it is larger than the sum of its proper divisors (112968472).

129106808 is a wasteful number, since it uses less digits than its factorization.

129106808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16138357 (or 16138353 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 129106808 is about 11362.5176787541. The cubic root of 129106808 is about 505.4168476009.

The spelling of 129106808 in words is "one hundred twenty-nine million, one hundred six thousand, eight hundred eight".