108129478 has 8 divisors (see below), whose sum is σ = 162313560. Its totient is φ = 54024960.

The previous prime is 108129467. The next prime is 108129499. The reversal of 108129478 is 874921801.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 108129478.

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, 16368 + ... + 22003.

It is an arithmetic number, because the mean of its divisors is an integer number (20289195).

Almost surely, 2^108129478 is an apocalyptic number.

108129478 is a deficient number, since it is larger than the sum of its proper divisors (54184082).

108129478 is a wasteful number, since it uses less digits than its factorization.

108129478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39782.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 108129478 is about 10398.5324926164. The cubic root of 108129478 is about 476.4105483979.

The spelling of 108129478 in words is "one hundred eight million, one hundred twenty-nine thousand, four hundred seventy-eight".