128368325 has 6 divisors (see below), whose sum is σ = 159176754. Its totient is φ = 102694640.

The previous prime is 128368259. The next prime is 128368337. The reversal of 128368325 is 523863821.

It can be written as a sum of positive squares in 3 ways, for example, as 29604481 + 98763844 = 5441^2 + 9938^2 .

It is not a de Polignac number, because 128368325 - 2⁸ = 128368069 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 2567342 + ... + 2567391.

It is an arithmetic number, because the mean of its divisors is an integer number (26529459).

Almost surely, 2^128368325 is an apocalyptic number.

It is an amenable number.

128368325 is a deficient number, since it is larger than the sum of its proper divisors (30808429).

128368325 is an equidigital number, since it uses as much as digits as its factorization.

128368325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134743 (or 5134738 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 128368325 is about 11329.9746248613. The cubic root of 128368325 is about 504.4513533054.

The spelling of 128368325 in words is "one hundred twenty-eight million, three hundred sixty-eight thousand, three hundred twenty-five".