129047675 has 12 divisors (see below), whose sum is σ = 164345136. Its totient is φ = 100447200.

The previous prime is 129047669. The next prime is 129047689. The reversal of 129047675 is 576740921.

It is not a de Polignac number, because 129047675 - 2²⁰ = 127999099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68831 + ... + 70680.

It is an arithmetic number, because the mean of its divisors is an integer number (13695428).

Almost surely, 2^129047675 is an apocalyptic number.

129047675 is a deficient number, since it is larger than the sum of its proper divisors (35297461).

129047675 is a wasteful number, since it uses less digits than its factorization.

129047675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139558 (or 139553 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 129047675 is about 11359.9152725714. The cubic root of 129047675 is about 505.3396727951.

The spelling of 129047675 in words is "one hundred twenty-nine million, forty-seven thousand, six hundred seventy-five".