12443201 has 8 divisors (see below), whose sum is σ = 13222440. Its totient is φ = 11669248.

The previous prime is 12443191. The next prime is 12443219. The reversal of 12443201 is 10234421.

It can be written as a sum of positive squares in 4 ways, for example, as 2356225 + 10086976 = 1535^2 + 3176^2 .

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 12443201 - 2²² = 8248897 is a prime.

It is a super-2 number, since 2×12443201² = 309666502252802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 12443201.

It is not an unprimeable number, because it can be changed into a prime (12443231) 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, 4235 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (1652805).

Almost surely, 2^12443201 is an apocalyptic number.

It is an amenable number.

12443201 is a deficient number, since it is larger than the sum of its proper divisors (779239).

12443201 is a wasteful number, since it uses less digits than its factorization.

12443201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12443201 is about 3527.4921686660. The cubic root of 12443201 is about 231.7273911055.

Adding to 12443201 its reverse (10234421), we get a palindrome (22677622).

The spelling of 12443201 in words is "twelve million, four hundred forty-three thousand, two hundred one".