128508054 has 8 divisors (see below), whose sum is σ = 257016120. Its totient is φ = 42836016.

The previous prime is 128508043. The next prime is 128508071. The reversal of 128508054 is 450805821.

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

128508054 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10708999 + ... + 10709010.

It is an arithmetic number, because the mean of its divisors is an integer number (32127015).

Almost surely, 2^128508054 is an apocalyptic number.

128508054 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.

128508054 is a wasteful number, since it uses less digits than its factorization.

128508054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21418014.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 128508054 is about 11336.1392898994. The cubic root of 128508054 is about 504.6343188040.

The spelling of 128508054 in words is "one hundred twenty-eight million, five hundred eight thousand, fifty-four".