128325213 has 36 divisors (see below), whose sum is σ = 197197884. Its totient is φ = 80352000.

The previous prime is 128325193. The next prime is 128325227. The reversal of 128325213 is 312523821.

128325213 is a `hidden beast` number, since 128 + 325 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 122478489 + 5846724 = 11067^2 + 2418^2 .

It is not a de Polignac number, because 128325213 - 2⁶ = 128325149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128325283) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 319813 + ... + 320213.

It is an arithmetic number, because the mean of its divisors is an integer number (5477719).

Almost surely, 2^128325213 is an apocalyptic number.

It is an amenable number.

128325213 is a deficient number, since it is larger than the sum of its proper divisors (68872671).

128325213 is a wasteful number, since it uses less digits than its factorization.

128325213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 472 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 128325213 is about 11328.0719012549. The cubic root of 128325213 is about 504.3948743107.

The spelling of 128325213 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, two hundred thirteen".