5481 has 16 divisors (see below), whose sum is σ = 9600. Its totient is φ = 3024.

The previous prime is 5479. The next prime is 5483. The reversal of 5481 is 1845.

It is an interprime number because it is at equal distance from previous prime (5479) and next prime (5483).

It is not a de Polignac number, because 5481 - 2¹ = 5479 is a prime.

It is a super-2 number, since 2×5481² = 60082722, which contains 22 as substring.

5481 is a modest number, since divided by 81 gives 54 as remainder.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 5481.

It is not an unprimeable number, because it can be changed into a prime (5483) 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 15 ways as a sum of consecutive naturals, for example, 175 + ... + 203.

It is an arithmetic number, because the mean of its divisors is an integer number (600).

2⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

5481 is a deficient number, since it is larger than the sum of its proper divisors (4119).

5481 is a wasteful number, since it uses less digits than its factorization.

5481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 39 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 5481 is about 74.0337760755. The cubic root of 5481 is about 17.6313919776.

The spelling of 5481 in words is "five thousand, four hundred eighty-one".