12981066 has 32 divisors (see below), whose sum is σ = 31234560. Its totient is φ = 3513456.

The previous prime is 12981011. The next prime is 12981083. The reversal of 12981066 is 66018921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7336 + ... + 8931.

It is an arithmetic number, because the mean of its divisors is an integer number (976080).

Almost surely, 2^12981066 is an apocalyptic number.

12981066 is an abundant number, since it is smaller than the sum of its proper divisors (18253494).

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

12981066 is a wasteful number, since it uses less digits than its factorization.

12981066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16298.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12981066 is about 3602.9246453402. The cubic root of 12981066 is about 235.0192590222.

Adding to 12981066 its reverse (66018921), we get a palindrome (78999987).

The spelling of 12981066 in words is "twelve million, nine hundred eighty-one thousand, sixty-six".