12638148 has 12 divisors (see below), whose sum is σ = 29489040. Its totient is φ = 4212712.

The previous prime is 12638147. The next prime is 12638149. The reversal of 12638148 is 84183621.

It is an interprime number because it is at equal distance from previous prime (12638147) and next prime (12638149).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12638147) 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 in 3 ways as a sum of consecutive naturals, for example, 526578 + ... + 526601.

It is an arithmetic number, because the mean of its divisors is an integer number (2457420).

Almost surely, 2^12638148 is an apocalyptic number.

It is an amenable number.

12638148 is an abundant number, since it is smaller than the sum of its proper divisors (16850892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12638148 is a wasteful number, since it uses less digits than its factorization.

12638148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053186 (or 1053184 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 12638148 is about 3555.0172995360. The cubic root of 12638148 is about 232.9312795059.

The spelling of 12638148 in words is "twelve million, six hundred thirty-eight thousand, one hundred forty-eight".