24481 has 2 divisors, whose sum is σ = 24482.
Its totient is φ = 24480.
The previous prime is 24473. The next prime is 24499. The reversal of 24481 is 18442.
It can be divided in two parts, 244 and 81, that added together give a triangular number (325 = T25).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 13456 + 11025 = 116^2 + 105^2
It is a cyclic number.
It is not a de Polignac number, because 24481 - 23 = 24473 is a prime.
It is a super-2 number, since 2×244812 = 1198638722, which contains 22 as substring.
It is a Chen prime.
24481 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (24421) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12240 + 12241.
It is an arithmetic number, because the mean of its divisors is an integer number (12241).
224481 is an apocalyptic number.
It is an amenable number.
24481 is a deficient number, since it is larger than the sum of its proper divisors (1).
24481 is an equidigital number, since it uses as much as digits as its factorization.
24481 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 256, while the sum is 19.
The square root of 24481 is about 156.4640533797.
The cubic root of 24481 is about 29.0364187718.
The spelling of 24481 in words is "twenty-four thousand, four hundred eighty-one".