328145085 has 12 divisors (see below), whose sum is σ = 568784892. Its totient is φ = 175010688.

The previous prime is 328145039. The next prime is 328145087. The reversal of 328145085 is 580541823.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 217769049 + 110376036 = 14757^2 + 10506^2 .

It is not a de Polignac number, because 328145085 - 2⁶ = 328145021 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328145087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3646012 + ... + 3646101.

It is an arithmetic number, because the mean of its divisors is an integer number (47398741).

Almost surely, 2^328145085 is an apocalyptic number.

It is an amenable number.

328145085 is a deficient number, since it is larger than the sum of its proper divisors (240639807).

328145085 is a wasteful number, since it uses less digits than its factorization.

328145085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292124 (or 7292121 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 328145085 is about 18114.7753229235. The cubic root of 328145085 is about 689.7451169490.

The spelling of 328145085 in words is "three hundred twenty-eight million, one hundred forty-five thousand, eighty-five".