129477486 has 8 divisors (see below), whose sum is σ = 258954984. Its totient is φ = 43159160.

The previous prime is 129477479. The next prime is 129477529. The reversal of 129477486 is 684774921.

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

129477486 is an admirable number.

It is a congruent number.

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, 10789785 + ... + 10789796.

It is an arithmetic number, because the mean of its divisors is an integer number (32369373).

Almost surely, 2^129477486 is an apocalyptic number.

129477486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129477486 is a wasteful number, since it uses less digits than its factorization.

129477486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21579586.

The product of its digits is 677376, while the sum is 48.

The square root of 129477486 is about 11378.8174253742. The cubic root of 129477486 is about 505.9000854658.

The spelling of 129477486 in words is "one hundred twenty-nine million, four hundred seventy-seven thousand, four hundred eighty-six".