12281033 has 4 divisors (see below), whose sum is σ = 12464400. Its totient is φ = 12097668.

The previous prime is 12281029. The next prime is 12281051. The reversal of 12281033 is 33018221.

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: 33018221 = 2423 ⋅13627.

It is a cyclic number.

It is not a de Polignac number, because 12281033 - 2² = 12281029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12280996 and 12281014.

It is not an unprimeable number, because it can be changed into a prime (12281063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91583 + ... + 91716.

It is an arithmetic number, because the mean of its divisors is an integer number (3116100).

Almost surely, 2^12281033 is an apocalyptic number.

It is an amenable number.

12281033 is a deficient number, since it is larger than the sum of its proper divisors (183367).

12281033 is an equidigital number, since it uses as much as digits as its factorization.

12281033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183366.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12281033 is about 3504.4304815476. The cubic root of 12281033 is about 230.7163112302.

Adding to 12281033 its reverse (33018221), we get a palindrome (45299254).

The spelling of 12281033 in words is "twelve million, two hundred eighty-one thousand, thirty-three".