328124645 has 4 divisors (see below), whose sum is σ = 393749580. Its totient is φ = 262499712.

The previous prime is 328124611. The next prime is 328124663. The reversal of 328124645 is 546421823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45144961 + 282979684 = 6719^2 + 16822^2 .

It is a cyclic number.

It is not a de Polignac number, because 328124645 - 2⁶ = 328124581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32812460 + ... + 32812469.

It is an arithmetic number, because the mean of its divisors is an integer number (98437395).

Almost surely, 2^328124645 is an apocalyptic number.

It is an amenable number.

328124645 is a deficient number, since it is larger than the sum of its proper divisors (65624935).

328124645 is an equidigital number, since it uses as much as digits as its factorization.

328124645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65624934.

The product of its digits is 46080, while the sum is 35.

The square root of 328124645 is about 18114.2111338032. The cubic root of 328124645 is about 689.7307953541.

The spelling of 328124645 in words is "three hundred twenty-eight million, one hundred twenty-four thousand, six hundred forty-five".