12891148 has 6 divisors (see below), whose sum is σ = 22559516. Its totient is φ = 6445572.

The previous prime is 12891119. The next prime is 12891157. The reversal of 12891148 is 84119821.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611390 + ... + 1611397.

Almost surely, 2^12891148 is an apocalyptic number.

It is an amenable number.

12891148 is a deficient number, since it is larger than the sum of its proper divisors (9668368).

12891148 is a wasteful number, since it uses less digits than its factorization.

12891148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222791 (or 3222789 counting only the distinct ones).

The product of its digits is 4608, while the sum is 34.

The square root of 12891148 is about 3590.4244874388. The cubic root of 12891148 is about 234.4753528892.

The spelling of 12891148 in words is "twelve million, eight hundred ninety-one thousand, one hundred forty-eight".