129276982 has 8 divisors (see below), whose sum is σ = 196252056. Its totient is φ = 63859632.

The previous prime is 129276949. The next prime is 129276991. The reversal of 129276982 is 289672921.

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

It is a congruent number.

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, 389223 + ... + 389554.

It is an arithmetic number, because the mean of its divisors is an integer number (24531507).

Almost surely, 2^129276982 is an apocalyptic number.

129276982 is a deficient number, since it is larger than the sum of its proper divisors (66975074).

129276982 is an equidigital number, since it uses as much as digits as its factorization.

129276982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778862.

The product of its digits is 217728, while the sum is 46.

The square root of 129276982 is about 11370.0036059801. The cubic root of 129276982 is about 505.6388112256.

The spelling of 129276982 in words is "one hundred twenty-nine million, two hundred seventy-six thousand, nine hundred eighty-two".