12331447 has 8 divisors (see below), whose sum is σ = 12714912. Its totient is φ = 11952000.

The previous prime is 12331441. The next prime is 12331453. The reversal of 12331447 is 74413321.

It is an interprime number because it is at equal distance from previous prime (12331441) and next prime (12331453).

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 12331447 - 2¹⁵ = 12298679 is a prime.

It is a super-2 number, since 2×12331447² = 304129170227618, which contains 22 as substring.

It is a Duffinian number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5947 + ... + 7747.

It is an arithmetic number, because the mean of its divisors is an integer number (1589364).

Almost surely, 2^12331447 is an apocalyptic number.

12331447 is a deficient number, since it is larger than the sum of its proper divisors (383465).

12331447 is a wasteful number, since it uses less digits than its factorization.

12331447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its digits is 2016, while the sum is 25.

The square root of 12331447 is about 3511.6160097596. The cubic root of 12331447 is about 231.0315792987.

Adding to 12331447 its reverse (74413321), we get a palindrome (86744768).

The spelling of 12331447 in words is "twelve million, three hundred thirty-one thousand, four hundred forty-seven".