328380251 has 2 divisors, whose sum is σ = 328380252. Its totient is φ = 328380250.

The previous prime is 328380229. The next prime is 328380277. The reversal of 328380251 is 152083823.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 328380251 - 2⁶ = 328380187 is a prime.

It is not a weakly prime, because it can be changed into another prime (328380281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164190125 + 164190126.

It is an arithmetic number, because the mean of its divisors is an integer number (164190126).

Almost surely, 2^328380251 is an apocalyptic number.

328380251 is a deficient number, since it is larger than the sum of its proper divisors (1).

328380251 is an equidigital number, since it uses as much as digits as its factorization.

328380251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 328380251 is about 18121.2651600268. The cubic root of 328380251 is about 689.9098467945.

The spelling of 328380251 in words is "three hundred twenty-eight million, three hundred eighty thousand, two hundred fifty-one".