335642081 has 2 divisors, whose sum is σ = 335642082. Its totient is φ = 335642080.

The previous prime is 335642071. The next prime is 335642093. The reversal of 335642081 is 180246533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326886400 + 8755681 = 18080^2 + 2959^2 .

It is an emirp because it is prime and its reverse (180246533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 335642081 - 2¹⁰ = 335641057 is a prime.

It is a super-2 number, since 2×335642081² = 225311213076021122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (335642071) 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, 167821040 + 167821041.

It is an arithmetic number, because the mean of its divisors is an integer number (167821041).

Almost surely, 2^335642081 is an apocalyptic number.

It is an amenable number.

335642081 is a deficient number, since it is larger than the sum of its proper divisors (1).

335642081 is an equidigital number, since it uses as much as digits as its factorization.

335642081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 335642081 is about 18320.5371373221. The cubic root of 335642081 is about 694.9583888963.

The spelling of 335642081 in words is "three hundred thirty-five million, six hundred forty-two thousand, eighty-one".