12444101 has 4 divisors (see below), whose sum is σ = 12453132. Its totient is φ = 12435072.

The previous prime is 12444097. The next prime is 12444137. The reversal of 12444101 is 10144421.

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 can be written as a sum of positive squares in 2 ways, for example, as 5527201 + 6916900 = 2351^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 12444101 - 2² = 12444097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12444101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1970 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (3113283).

Almost surely, 2^12444101 is an apocalyptic number.

It is an amenable number.

12444101 is a deficient number, since it is larger than the sum of its proper divisors (9031).

12444101 is an equidigital number, since it uses as much as digits as its factorization.

12444101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 12444101 is about 3527.6197357425. The cubic root of 12444101 is about 231.7329778144.

Adding to 12444101 its reverse (10144421), we get a palindrome (22588522).

The spelling of 12444101 in words is "twelve million, four hundred forty-four thousand, one hundred one".