12731067 has 8 divisors (see below), whose sum is σ = 18860880. Its totient is φ = 8487360.

The previous prime is 12731063. The next prime is 12731093. The reversal of 12731067 is 76013721.

It is not a de Polignac number, because 12731067 - 2² = 12731063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 471521 = 12731067 / (1 + 2 + 7 + 3 + 1 + 0 + 6 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 12731067.

It is not an unprimeable number, because it can be changed into a prime (12731063) by changing a digit.

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, 235734 + ... + 235787.

It is an arithmetic number, because the mean of its divisors is an integer number (2357610).

Almost surely, 2^12731067 is an apocalyptic number.

12731067 is a deficient number, since it is larger than the sum of its proper divisors (6129813).

12731067 is an equidigital number, since it uses as much as digits as its factorization.

12731067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471530 (or 471524 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 12731067 is about 3568.0620790564. The cubic root of 12731067 is about 233.5007435779.

Adding to 12731067 its reverse (76013721), we get a palindrome (88744788).

The spelling of 12731067 in words is "twelve million, seven hundred thirty-one thousand, sixty-seven".