328080281 has 2 divisors, whose sum is σ = 328080282. Its totient is φ = 328080280.

The previous prime is 328080251. The next prime is 328080301. The reversal of 328080281 is 182080823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327935881 + 144400 = 18109^2 + 380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328080281 is a prime.

It is a super-2 number, since 2×328080281² = 215273341562077922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (328080251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164040140 + 164040141.

It is an arithmetic number, because the mean of its divisors is an integer number (164040141).

Almost surely, 2^328080281 is an apocalyptic number.

It is an amenable number.

328080281 is a deficient number, since it is larger than the sum of its proper divisors (1).

328080281 is an equidigital number, since it uses as much as digits as its factorization.

328080281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 328080281 is about 18112.9865290073. The cubic root of 328080281 is about 689.6997090005.

The spelling of 328080281 in words is "three hundred twenty-eight million, eighty thousand, two hundred eighty-one".