308280001 has 2 divisors, whose sum is σ = 308280002. Its totient is φ = 308280000.

The previous prime is 308279987. The next prime is 308280053. The reversal of 308280001 is 100082803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260338225 + 47941776 = 16135^2 + 6924^2 .

It is an emirp because it is prime and its reverse (100082803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 308280001 - 2⁵ = 308279969 is a prime.

It is not a weakly prime, because it can be changed into another prime (308280101) 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, 154140000 + 154140001.

It is an arithmetic number, because the mean of its divisors is an integer number (154140001).

Almost surely, 2^308280001 is an apocalyptic number.

It is an amenable number.

308280001 is a deficient number, since it is larger than the sum of its proper divisors (1).

308280001 is an equidigital number, since it uses as much as digits as its factorization.

308280001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 308280001 is about 17557.9042314281. The cubic root of 308280001 is about 675.5359262783.

The spelling of 308280001 in words is "three hundred eight million, two hundred eighty thousand, one".