80281 has 4 divisors (see below), whose sum is σ = 82192. Its totient is φ = 78372.

The previous prime is 80279. The next prime is 80287. The reversal of 80281 is 18208.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80281 - 2¹ = 80279 is a prime.

It is a super-2 number, since 2×80281² = 12890077922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (80287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891 + ... + 976.

It is an arithmetic number, because the mean of its divisors is an integer number (20548).

2⁸⁰²⁸¹ is an apocalyptic number.

It is an amenable number.

80281 is a deficient number, since it is larger than the sum of its proper divisors (1911).

80281 is a wasteful number, since it uses less digits than its factorization.

80281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 80281 is about 283.3390195508. The cubic root of 80281 is about 43.1390845265.

Adding to 80281 its reverse (18208), we get a palindrome (98489).

It can be divided in two parts, 80 and 281, that added together give a square (361 = 19²).

The spelling of 80281 in words is "eighty thousand, two hundred eighty-one".