38281 has 2 divisors, whose sum is σ = 38282. Its totient is φ = 38280.

The previous prime is 38273. The next prime is 38287. The reversal of 38281 is 18283.

38281 is nontrivially palindromic in base 12.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38025 + 256 = 195^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 38281 - 2³ = 38273 is a prime.

It is a super-2 number, since 2×38281² = 2930869922, which contains 22 as substring.

38281 is an undulating number in base 12.

It is a plaindrome in base 13.

It is a nialpdrome in base 5 and base 15.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (38287) 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, 19140 + 19141.

It is an arithmetic number, because the mean of its divisors is an integer number (19141).

2³⁸²⁸¹ is an apocalyptic number.

38281 is the 88-th centered decagonal number.

It is an amenable number.

38281 is a deficient number, since it is larger than the sum of its proper divisors (1).

38281 is an equidigital number, since it uses as much as digits as its factorization.

38281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 38281 is about 195.6553091536. The cubic root of 38281 is about 33.7024203811.

The spelling of 38281 in words is "thirty-eight thousand, two hundred eighty-one".