12144454 has 12 divisors (see below), whose sum is σ = 21191004. Its totient is φ = 5204724.

The previous prime is 12144413. The next prime is 12144463. The reversal of 12144454 is 45444121.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 61864 + ... + 62059.

It is an arithmetic number, because the mean of its divisors is an integer number (1765917).

Almost surely, 2^12144454 is an apocalyptic number.

12144454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12144454 is a deficient number, since it is larger than the sum of its proper divisors (9046550).

12144454 is a wasteful number, since it uses less digits than its factorization.

12144454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123939 (or 123932 counting only the distinct ones).

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

The square root of 12144454 is about 3484.8893813147. The cubic root of 12144454 is about 229.8578453648.

Adding to 12144454 its reverse (45444121), we get a palindrome (57588575).

The spelling of 12144454 in words is "twelve million, one hundred forty-four thousand, four hundred fifty-four".