12897133 has 4 divisors (see below), whose sum is σ = 12948768. Its totient is φ = 12845500.

The previous prime is 12897103. The next prime is 12897163. The reversal of 12897133 is 33179821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12897103) and next prime (12897163).

It is a cyclic number.

It is not a de Polignac number, because 12897133 - 2⁹ = 12896621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25441 + ... + 25942.

It is an arithmetic number, because the mean of its divisors is an integer number (3237192).

Almost surely, 2^12897133 is an apocalyptic number.

It is an amenable number.

12897133 is a deficient number, since it is larger than the sum of its proper divisors (51635).

12897133 is an equidigital number, since it uses as much as digits as its factorization.

12897133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51634.

The product of its digits is 9072, while the sum is 34.

The square root of 12897133 is about 3591.2578576315. The cubic root of 12897133 is about 234.5116340611.

The spelling of 12897133 in words is "twelve million, eight hundred ninety-seven thousand, one hundred thirty-three".