12881516 has 12 divisors (see below), whose sum is σ = 22754088. Its totient is φ = 6380352.

The previous prime is 12881501. The next prime is 12881521. The reversal of 12881516 is 61518821.

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, 14621 + ... + 15476.

It is an arithmetic number, because the mean of its divisors is an integer number (1896174).

Almost surely, 2^12881516 is an apocalyptic number.

It is an amenable number.

12881516 is a deficient number, since it is larger than the sum of its proper divisors (9872572).

12881516 is a wasteful number, since it uses less digits than its factorization.

12881516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30208 (or 30206 counting only the distinct ones).

The product of its digits is 3840, while the sum is 32.

The square root of 12881516 is about 3589.0828912133. The cubic root of 12881516 is about 234.4169399554.

The spelling of 12881516 in words is "twelve million, eight hundred eighty-one thousand, five hundred sixteen".