12971018 has 16 divisors (see below), whose sum is σ = 19783680. Its totient is φ = 6377616.

The previous prime is 12971009. The next prime is 12971039. The reversal of 12971018 is 81017921.

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 7 ways as a sum of consecutive naturals, for example, 56528 + ... + 56756.

It is an arithmetic number, because the mean of its divisors is an integer number (1236480).

Almost surely, 2^12971018 is an apocalyptic number.

12971018 is a deficient number, since it is larger than the sum of its proper divisors (6812662).

12971018 is a wasteful number, since it uses less digits than its factorization.

12971018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 12971018 is about 3601.5299526729. The cubic root of 12971018 is about 234.9586044484.

Adding to 12971018 its reverse (81017921), we get a palindrome (93988939).

The spelling of 12971018 in words is "twelve million, nine hundred seventy-one thousand, eighteen".