12331445 has 8 divisors (see below), whose sum is σ = 16911744. Its totient is φ = 8455824.

The previous prime is 12331441. The next prime is 12331453. The reversal of 12331445 is 54413321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12331445 - 2² = 12331441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12331445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331441) 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 7 ways as a sum of consecutive naturals, for example, 176129 + ... + 176198.

It is an arithmetic number, because the mean of its divisors is an integer number (2113968).

Almost surely, 2^12331445 is an apocalyptic number.

It is an amenable number.

12331445 is a deficient number, since it is larger than the sum of its proper divisors (4580299).

12331445 is an equidigital number, since it uses as much as digits as its factorization.

12331445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352339.

The product of its digits is 1440, while the sum is 23.

The square root of 12331445 is about 3511.6157249904. The cubic root of 12331445 is about 231.0315668086.

Adding to 12331445 its reverse (54413321), we get a palindrome (66744766).

The spelling of 12331445 in words is "twelve million, three hundred thirty-one thousand, four hundred forty-five".