325643136 has 128 divisors (see below), whose sum is σ = 1064716800. Its totient is φ = 85874688.

The previous prime is 325643111. The next prime is 325643159. The reversal of 325643136 is 631346523.

325643136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 325643097 and 325643106.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30285 + ... + 39603.

It is an arithmetic number, because the mean of its divisors is an integer number (8318100).

Almost surely, 2^325643136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325643136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532358400).

325643136 is an abundant number, since it is smaller than the sum of its proper divisors (739073664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325643136 is a wasteful number, since it uses less digits than its factorization.

325643136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356 (or 9344 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 325643136 is about 18045.5849448002. The cubic root of 325643136 is about 687.9876507609.

Adding to 325643136 its reverse (631346523), we get a palindrome (956989659).

The spelling of 325643136 in words is "three hundred twenty-five million, six hundred forty-three thousand, one hundred thirty-six".