12642148 has 12 divisors (see below), whose sum is σ = 22252860. Its totient is φ = 6284192.

The previous prime is 12642139. The next prime is 12642181. The reversal of 12642148 is 84124621.

It can be written as a sum of positive squares in 2 ways, for example, as 10445824 + 2196324 = 3232^2 + 1482^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8443 + ... + 9826.

It is an arithmetic number, because the mean of its divisors is an integer number (1854405).

Almost surely, 2^12642148 is an apocalyptic number.

It is an amenable number.

12642148 is a deficient number, since it is larger than the sum of its proper divisors (9610712).

12642148 is a wasteful number, since it uses less digits than its factorization.

12642148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18446 (or 18444 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 12642148 is about 3555.5798401948. The cubic root of 12642148 is about 232.9558513245.

Adding to 12642148 its reverse (84124621), we get a palindrome (96766769).

The spelling of 12642148 in words is "twelve million, six hundred forty-two thousand, one hundred forty-eight".