12483281 has 4 divisors (see below), whose sum is σ = 12553200. Its totient is φ = 12413364.

The previous prime is 12483259. The next prime is 12483293. The reversal of 12483281 is 18238421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18238421 = 743 ⋅24547.

It is a cyclic number.

It is not a de Polignac number, because 12483281 - 2⁶ = 12483217 is a prime.

It is a super-2 number, since 2×12483281² = 311664609049922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12483241) 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, 34691 + ... + 35048.

It is an arithmetic number, because the mean of its divisors is an integer number (3138300).

Almost surely, 2^12483281 is an apocalyptic number.

It is an amenable number.

12483281 is a deficient number, since it is larger than the sum of its proper divisors (69919).

12483281 is an equidigital number, since it uses as much as digits as its factorization.

12483281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69918.

The product of its digits is 3072, while the sum is 29.

The square root of 12483281 is about 3533.1686911326. The cubic root of 12483281 is about 231.9759252169.

The spelling of 12483281 in words is "twelve million, four hundred eighty-three thousand, two hundred eighty-one".