12981267 has 12 divisors (see below), whose sum is σ = 20193264. Its totient is φ = 7988400.

The previous prime is 12981263. The next prime is 12981271. The reversal of 12981267 is 76218921.

It is an interprime number because it is at equal distance from previous prime (12981263) and next prime (12981271).

It is not a de Polignac number, because 12981267 - 2² = 12981263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12981263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55359 + ... + 55592.

It is an arithmetic number, because the mean of its divisors is an integer number (1682772).

Almost surely, 2^12981267 is an apocalyptic number.

12981267 is a deficient number, since it is larger than the sum of its proper divisors (7211997).

12981267 is a wasteful number, since it uses less digits than its factorization.

12981267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110970 (or 110967 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 12981267 is about 3602.9525392378. The cubic root of 12981267 is about 235.0204720358.

The spelling of 12981267 in words is "twelve million, nine hundred eighty-one thousand, two hundred sixty-seven".