12322491 has 4 divisors (see below), whose sum is σ = 16429992. Its totient is φ = 8214992.

The previous prime is 12322451. The next prime is 12322523. The reversal of 12322491 is 19422321.

12322491 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.

It is a cyclic number.

It is not a de Polignac number, because 12322491 - 2¹¹ = 12320443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12322421) 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, 2053746 + ... + 2053751.

It is an arithmetic number, because the mean of its divisors is an integer number (4107498).

Almost surely, 2^12322491 is an apocalyptic number.

12322491 is a deficient number, since it is larger than the sum of its proper divisors (4107501).

12322491 is an equidigital number, since it uses as much as digits as its factorization.

12322491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107500.

The product of its digits is 864, while the sum is 24.

The square root of 12322491 is about 3510.3405817670. The cubic root of 12322491 is about 230.9756350682.

The spelling of 12322491 in words is "twelve million, three hundred twenty-two thousand, four hundred ninety-one".