129621482 has 8 divisors (see below), whose sum is σ = 194500416. Its totient is φ = 64788012.

The previous prime is 129621473. The next prime is 129621493. The reversal of 129621482 is 284126921.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008 + ... + 16379.

It is an arithmetic number, because the mean of its divisors is an integer number (24312552).

Almost surely, 2^129621482 is an apocalyptic number.

129621482 is a deficient number, since it is larger than the sum of its proper divisors (64878934).

129621482 is a wasteful number, since it uses less digits than its factorization.

129621482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22732.

The product of its digits is 13824, while the sum is 35.

The square root of 129621482 is about 11385.1430381880. The cubic root of 129621482 is about 506.0875584704.

The spelling of 129621482 in words is "one hundred twenty-nine million, six hundred twenty-one thousand, four hundred eighty-two".