128948533 has 8 divisors (see below), whose sum is σ = 147663360. Its totient is φ = 110307120.

The previous prime is 128948531. The next prime is 128948539. The reversal of 128948533 is 335849821.

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

It is not a de Polignac number, because 128948533 - 2¹ = 128948531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128948533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128948531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14533 + ... + 21658.

It is an arithmetic number, because the mean of its divisors is an integer number (18457920).

Almost surely, 2^128948533 is an apocalyptic number.

It is an amenable number.

128948533 is a deficient number, since it is larger than the sum of its proper divisors (18714827).

128948533 is an equidigital number, since it uses as much as digits as its factorization.

128948533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36707.

The product of its digits is 207360, while the sum is 43.

The square root of 128948533 is about 11355.5507572288. The cubic root of 128948533 is about 505.2102291061.

The spelling of 128948533 in words is "one hundred twenty-eight million, nine hundred forty-eight thousand, five hundred thirty-three".