128325843 has 16 divisors (see below), whose sum is σ = 201296160. Its totient is φ = 80517888.

The previous prime is 128325823. The next prime is 128325871. The reversal of 128325843 is 348523821.

It is not a de Polignac number, because 128325843 - 2⁶ = 128325779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128325798 and 128325807.

It is not an unprimeable number, because it can be changed into a prime (128325823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139330 + ... + 140247.

It is an arithmetic number, because the mean of its divisors is an integer number (12581010).

Almost surely, 2^128325843 is an apocalyptic number.

128325843 is a deficient number, since it is larger than the sum of its proper divisors (72970317).

128325843 is a wasteful number, since it uses less digits than its factorization.

128325843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279603 (or 279597 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 128325843 is about 11328.0997082476. The cubic root of 128325843 is about 504.3956997350.

The spelling of 128325843 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, eight hundred forty-three".