8481281 has 4 divisors (see below), whose sum is σ = 8508864. Its totient is φ = 8453700.

The previous prime is 8481269. The next prime is 8481287. The reversal of 8481281 is 1821848.

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 8481281 - 2¹⁸ = 8219137 is a prime.

It is a super-2 number, since 2×8481281² = 143864254801922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8481287) 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 in 3 ways as a sum of consecutive naturals, for example, 13325 + ... + 13946.

It is an arithmetic number, because the mean of its divisors is an integer number (2127216).

Almost surely, 2^8481281 is an apocalyptic number.

It is an amenable number.

8481281 is a deficient number, since it is larger than the sum of its proper divisors (27583).

8481281 is a wasteful number, since it uses less digits than its factorization.

8481281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27582.

The product of its digits is 4096, while the sum is 32.

The square root of 8481281 is about 2912.2638960094. The cubic root of 8481281 is about 203.9328322381.

The spelling of 8481281 in words is "eight million, four hundred eighty-one thousand, two hundred eighty-one".