12454144 has 18 divisors (see below), whose sum is σ = 24860150. Its totient is φ = 6226944.

The previous prime is 12454111. The next prime is 12454147. The reversal of 12454144 is 44145421.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 2214144 = 3200^2 + 1488^2 .

It is not an unprimeable number, because it can be changed into a prime (12454147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24069 + ... + 24580.

Almost surely, 2^12454144 is an apocalyptic number.

It is an amenable number.

12454144 is a deficient number, since it is larger than the sum of its proper divisors (12406006).

12454144 is an frugal number, since it uses more digits than its factorization.

12454144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48665 (or 48651 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 12454144 is about 3529.0429297474. The cubic root of 12454144 is about 231.7953010120.

Adding to 12454144 its reverse (44145421), we get a palindrome (56599565).

The spelling of 12454144 in words is "twelve million, four hundred fifty-four thousand, one hundred forty-four".