129475168 has 12 divisors (see below), whose sum is σ = 254904300. Its totient is φ = 64737568.

The previous prime is 129475133. The next prime is 129475217. The reversal of 129475168 is 861574921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2023018 + ... + 2023081.

It is an arithmetic number, because the mean of its divisors is an integer number (21242025).

Almost surely, 2^129475168 is an apocalyptic number.

It is an amenable number.

129475168 is a deficient number, since it is larger than the sum of its proper divisors (125429132).

129475168 is an equidigital number, since it uses as much as digits as its factorization.

129475168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046109 (or 4046101 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 129475168 is about 11378.7155689911. The cubic root of 129475168 is about 505.8970664508.

The spelling of 129475168 in words is "one hundred twenty-nine million, four hundred seventy-five thousand, one hundred sixty-eight".