328505145 has 8 divisors (see below), whose sum is σ = 525608256. Its totient is φ = 175202736.

The previous prime is 328505131. The next prime is 328505167. The reversal of 328505145 is 541505823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 328505145 - 2⁹ = 328504633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10950157 + ... + 10950186.

It is an arithmetic number, because the mean of its divisors is an integer number (65701032).

Almost surely, 2^328505145 is an apocalyptic number.

It is an amenable number.

328505145 is a deficient number, since it is larger than the sum of its proper divisors (197103111).

328505145 is a wasteful number, since it uses less digits than its factorization.

328505145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21900351.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 328505145 is about 18124.7108942460. The cubic root of 328505145 is about 689.9973009766.

The spelling of 328505145 in words is "three hundred twenty-eight million, five hundred five thousand, one hundred forty-five".