128235325 has 12 divisors (see below), whose sum is σ = 159314580. Its totient is φ = 102392960.

The previous prime is 128235311. The next prime is 128235343. The reversal of 128235325 is 523532821.

It can be written as a sum of positive squares in 6 ways, for example, as 38118276 + 90117049 = 6174^2 + 9493^2 .

It is a de Polignac number, because none of the positive numbers 2^k-128235325 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9321 + ... + 18529.

It is an arithmetic number, because the mean of its divisors is an integer number (13276215).

Almost surely, 2^128235325 is an apocalyptic number.

It is an amenable number.

128235325 is a deficient number, since it is larger than the sum of its proper divisors (31079255).

128235325 is an equidigital number, since it uses as much as digits as its factorization.

128235325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776 (or 9771 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 128235325 is about 11324.1037172926. The cubic root of 128235325 is about 504.2770755926.

The spelling of 128235325 in words is "one hundred twenty-eight million, two hundred thirty-five thousand, three hundred twenty-five".