335381 has 2 divisors, whose sum is σ = 335382. Its totient is φ = 335380.

The previous prime is 335347. The next prime is 335383. The reversal of 335381 is 183533.

335381 = 409² + 410².

335381 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 167281 = 410^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 335381 - 2¹⁸ = 73237 is a prime.

It is a super-2 number, since 2×335381² = 224960830322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 335383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 335381.

It is not a weakly prime, because it can be changed into another prime (335383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167690 + 167691.

It is an arithmetic number, because the mean of its divisors is an integer number (167691).

2³³⁵³⁸¹ is an apocalyptic number.

335381 is the 410-th centered square number.

It is an amenable number.

335381 is a deficient number, since it is larger than the sum of its proper divisors (1).

335381 is an equidigital number, since it uses as much as digits as its factorization.

335381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 335381 is about 579.1208854807. The cubic root of 335381 is about 69.4778149780.

The spelling of 335381 in words is "three hundred thirty-five thousand, three hundred eighty-one".