12283391 has 4 divisors (see below), whose sum is σ = 12290832. Its totient is φ = 12275952.

The previous prime is 12283379. The next prime is 12283393. The reversal of 12283391 is 19338221.

12283391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12283391 - 2²² = 8089087 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12283393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11 + ... + 4956.

It is an arithmetic number, because the mean of its divisors is an integer number (3072708).

Almost surely, 2^12283391 is an apocalyptic number.

12283391 is a deficient number, since it is larger than the sum of its proper divisors (7441).

12283391 is an equidigital number, since it uses as much as digits as its factorization.

12283391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440.

The product of its digits is 2592, while the sum is 29.

The square root of 12283391 is about 3504.7668966709. The cubic root of 12283391 is about 230.7310763901.

The spelling of 12283391 in words is "twelve million, two hundred eighty-three thousand, three hundred ninety-one".