35281 has 2 divisors, whose sum is σ = 35282. Its totient is φ = 35280.

The previous prime is 35279. The next prime is 35291. The reversal of 35281 is 18253.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25281 + 10000 = 159^2 + 100^2 .

It is an emirp because it is prime and its reverse (18253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35281 - 2¹ = 35279 is a prime.

It is a super-2 number, since 2×35281² = 2489497922, which contains 22 as substring.

Together with 35279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (35201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17640 + 17641.

It is an arithmetic number, because the mean of its divisors is an integer number (17641).

2³⁵²⁸¹ is an apocalyptic number.

It is an amenable number.

35281 is a deficient number, since it is larger than the sum of its proper divisors (1).

35281 is an equidigital number, since it uses as much as digits as its factorization.

35281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 35281 is about 187.8323720768. The cubic root of 35281 is about 32.7979698327.

The spelling of 35281 in words is "thirty-five thousand, two hundred eighty-one".