129550088 has 8 divisors (see below), whose sum is σ = 242906430. Its totient is φ = 64775040.

The previous prime is 129550067. The next prime is 129550103. The reversal of 129550088 is 880055921.

It can be written as a sum of positive squares in only one way, i.e., 129458884 + 91204 = 11378^2 + 302^2 .

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

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, 8096873 + ... + 8096888.

Almost surely, 2^129550088 is an apocalyptic number.

It is an amenable number.

129550088 is a deficient number, since it is larger than the sum of its proper divisors (113356342).

129550088 is a wasteful number, since it uses less digits than its factorization.

129550088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16193767 (or 16193763 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 129550088 is about 11382.0072043555. The cubic root of 129550088 is about 505.9946256987.

The spelling of 129550088 in words is "one hundred twenty-nine million, five hundred fifty thousand, eighty-eight".