129071608 has 32 divisors (see below), whose sum is σ = 252015120. Its totient is φ = 61920000.

The previous prime is 129071603. The next prime is 129071623. The reversal of 129071608 is 806170921.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129071603) 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, 16783 + ... + 23233.

Almost surely, 2^129071608 is an apocalyptic number.

It is an amenable number.

129071608 is a deficient number, since it is larger than the sum of its proper divisors (122943512).

129071608 is a wasteful number, since it uses less digits than its factorization.

129071608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6559 (or 6555 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 129071608 is about 11360.9686206767. The cubic root of 129071608 is about 505.3709107254.

The spelling of 129071608 in words is "one hundred twenty-nine million, seventy-one thousand, six hundred eight".