485281 has 4 divisors (see below), whose sum is σ = 492592. Its totient is φ = 477972.

The previous prime is 485263. The next prime is 485311. The reversal of 485281 is 182584.

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 485281 - 2⁹ = 484769 is a prime.

It is a super-2 number, since 2×485281² = 470995297922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485201) 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 in 3 ways as a sum of consecutive naturals, for example, 3555 + ... + 3688.

It is an arithmetic number, because the mean of its divisors is an integer number (123148).

2⁴⁸⁵²⁸¹ is an apocalyptic number.

It is an amenable number.

485281 is a deficient number, since it is larger than the sum of its proper divisors (7311).

485281 is an equidigital number, since it uses as much as digits as its factorization.

485281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310.

The product of its digits is 2560, while the sum is 28.

The square root of 485281 is about 696.6211308882. The cubic root of 485281 is about 78.5834508168.

It can be divided in two parts, 48 and 5281, that added together give a square (5329 = 73²).

The spelling of 485281 in words is "four hundred eighty-five thousand, two hundred eighty-one".