128330526 has 8 divisors (see below), whose sum is σ = 256661064. Its totient is φ = 42776840.

The previous prime is 128330513. The next prime is 128330551. The reversal of 128330526 is 625033821.

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

128330526 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 128330493 and 128330502.

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, 10694205 + ... + 10694216.

It is an arithmetic number, because the mean of its divisors is an integer number (32082633).

Almost surely, 2^128330526 is an apocalyptic number.

128330526 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.

128330526 is a wasteful number, since it uses less digits than its factorization.

128330526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21388426.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 128330526 is about 11328.3064047544. The cubic root of 128330526 is about 504.4018353044.

The spelling of 128330526 in words is "one hundred twenty-eight million, three hundred thirty thousand, five hundred twenty-six".