129793208 has 32 divisors (see below), whose sum is σ = 252504000. Its totient is φ = 62499840.

The previous prime is 129793207. The next prime is 129793217. The reversal of 129793208 is 802397921.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129793207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23408 + ... + 28416.

It is an arithmetic number, because the mean of its divisors is an integer number (7890750).

Almost surely, 2^129793208 is an apocalyptic number.

It is an amenable number.

129793208 is a deficient number, since it is larger than the sum of its proper divisors (122710792).

129793208 is a wasteful number, since it uses less digits than its factorization.

129793208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 129793208 is about 11392.6822127188. The cubic root of 129793208 is about 506.3109526163.

The spelling of 129793208 in words is "one hundred twenty-nine million, seven hundred ninety-three thousand, two hundred eight".