8018281 has 2 divisors, whose sum is σ = 8018282. Its totient is φ = 8018280.

The previous prime is 8018279. The next prime is 8018291. The reversal of 8018281 is 1828108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4347225 + 3671056 = 2085^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 8018281 - 2¹ = 8018279 is a prime.

It is a super-2 number, since 2×8018281² = 128585660389922, which contains 22 as substring.

Together with 8018279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8018221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4009140 + 4009141.

It is an arithmetic number, because the mean of its divisors is an integer number (4009141).

Almost surely, 2^8018281 is an apocalyptic number.

It is an amenable number.

8018281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8018281 is an equidigital number, since it uses as much as digits as its factorization.

8018281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 8018281 is about 2831.6569354355. The cubic root of 8018281 is about 200.1522257738.

The spelling of 8018281 in words is "eight million, eighteen thousand, two hundred eighty-one".