129753808 has 20 divisors (see below), whose sum is σ = 255152320. Its totient is φ = 63908064.

The previous prime is 129753779. The next prime is 129753821. The reversal of 129753808 is 808357921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59448 + ... + 61591.

It is an arithmetic number, because the mean of its divisors is an integer number (12757616).

Almost surely, 2^129753808 is an apocalyptic number.

It is an amenable number.

129753808 is a deficient number, since it is larger than the sum of its proper divisors (125398512).

129753808 is a wasteful number, since it uses less digits than its factorization.

129753808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121114 (or 121108 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 129753808 is about 11390.9529013160. The cubic root of 129753808 is about 506.2597155479.

The spelling of 129753808 in words is "one hundred twenty-nine million, seven hundred fifty-three thousand, eight hundred eight".