129030875 has 16 divisors (see below), whose sum is σ = 161347680. Its totient is φ = 103021600.

The previous prime is 129030829. The next prime is 129030883. The reversal of 129030875 is 578030921.

It is not a de Polignac number, because 129030875 - 2¹⁶ = 128965339 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 126116 + ... + 127134.

It is an arithmetic number, because the mean of its divisors is an integer number (10084230).

Almost surely, 2^129030875 is an apocalyptic number.

129030875 is a deficient number, since it is larger than the sum of its proper divisors (32316805).

129030875 is a wasteful number, since it uses less digits than its factorization.

129030875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 129030875 is about 11359.1758063691. The cubic root of 129030875 is about 505.3177427218.

The spelling of 129030875 in words is "one hundred twenty-nine million, thirty thousand, eight hundred seventy-five".