12542144 has 14 divisors (see below), whose sum is σ = 24888444. Its totient is φ = 6271040.

The previous prime is 12542143. The next prime is 12542177. The reversal of 12542144 is 44124521.

It is a super-2 number, since 2×12542144² = 314610752233472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12542143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97922 + ... + 98049.

It is an arithmetic number, because the mean of its divisors is an integer number (1777746).

Almost surely, 2^12542144 is an apocalyptic number.

It is an amenable number.

12542144 is a deficient number, since it is larger than the sum of its proper divisors (12346300).

12542144 is an equidigital number, since it uses as much as digits as its factorization.

12542144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195983 (or 195973 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 12542144 is about 3541.4889524041. The cubic root of 12542144 is about 232.3399692681.

Adding to 12542144 its reverse (44124521), we get a palindrome (56666665).

The spelling of 12542144 in words is "twelve million, five hundred forty-two thousand, one hundred forty-four".