129455282 has 8 divisors (see below), whose sum is σ = 211835952. Its totient is φ = 58843300.

The previous prime is 129455279. The next prime is 129455299. The reversal of 129455282 is 282554921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942144 + ... + 2942187.

It is an arithmetic number, because the mean of its divisors is an integer number (26479494).

Almost surely, 2^129455282 is an apocalyptic number.

129455282 is a deficient number, since it is larger than the sum of its proper divisors (82380670).

129455282 is a wasteful number, since it uses less digits than its factorization.

129455282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884344.

The product of its digits is 57600, while the sum is 38.

The square root of 129455282 is about 11377.8417109749. The cubic root of 129455282 is about 505.8711649998.

The spelling of 129455282 in words is "one hundred twenty-nine million, four hundred fifty-five thousand, two hundred eighty-two".