335261 has 2 divisors, whose sum is σ = 335262. Its totient is φ = 335260.

The previous prime is 335249. The next prime is 335273. The reversal of 335261 is 162533.

It is a balanced prime because it is at equal distance from previous prime (335249) and next prime (335273).

It can be written as a sum of positive squares in only one way, i.e., 302500 + 32761 = 550^2 + 181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-335261 is a prime.

It is a super-2 number, since 2×335261² = 224799876242, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₈₈₂₀ and since 335261 and 28820 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167630 + 167631.

It is an arithmetic number, because the mean of its divisors is an integer number (167631).

2³³⁵²⁶¹ is an apocalyptic number.

It is an amenable number.

335261 is a deficient number, since it is larger than the sum of its proper divisors (1).

335261 is an equidigital number, since it uses as much as digits as its factorization.

335261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 20.

The square root of 335261 is about 579.0172708996. The cubic root of 335261 is about 69.4695275553.

Subtracting from 335261 its sum of digits (20), we obtain a square (335241 = 579²).

Adding to 335261 its reverse (162533), we get a palindrome (497794).

The spelling of 335261 in words is "three hundred thirty-five thousand, two hundred sixty-one".