128848933 has 4 divisors (see below), whose sum is σ = 136428300. Its totient is φ = 121269568.

The previous prime is 128848931. The next prime is 128848961. The reversal of 128848933 is 339848821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35784324 + 93064609 = 5982^2 + 9647^2 .

It is not a de Polignac number, because 128848933 - 2¹ = 128848931 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128848931) by changing a digit.

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, 3789658 + ... + 3789691.

It is an arithmetic number, because the mean of its divisors is an integer number (34107075).

Almost surely, 2^128848933 is an apocalyptic number.

It is an amenable number.

128848933 is a deficient number, since it is larger than the sum of its proper divisors (7579367).

128848933 is an equidigital number, since it uses as much as digits as its factorization.

128848933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7579366.

The product of its digits is 331776, while the sum is 46.

The square root of 128848933 is about 11351.1643896122. The cubic root of 128848933 is about 505.0801206081.

The spelling of 128848933 in words is "one hundred twenty-eight million, eight hundred forty-eight thousand, nine hundred thirty-three".