129470208 has 72 divisors (see below), whose sum is σ = 393821568. Its totient is φ = 36989952.

The previous prime is 129470179. The next prime is 129470213. The reversal of 129470208 is 802074921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6666 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (5469744).

Almost surely, 2^129470208 is an apocalyptic number.

It is an amenable number.

129470208 is an abundant number, since it is smaller than the sum of its proper divisors (264351360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129470208 is an equidigital number, since it uses as much as digits as its factorization.

129470208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24109 (or 24095 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 129470208 is about 11378.4976161179. The cubic root of 129470208 is about 505.8906063150.

The spelling of 129470208 in words is "one hundred twenty-nine million, four hundred seventy thousand, two hundred eight".