12537271 has 2 divisors, whose sum is σ = 12537272. Its totient is φ = 12537270.

The previous prime is 12537257. The next prime is 12537311. The reversal of 12537271 is 17273521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12537271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12537871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268635 + 6268636.

It is an arithmetic number, because the mean of its divisors is an integer number (6268636).

Almost surely, 2^12537271 is an apocalyptic number.

12537271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537271 is an equidigital number, since it uses as much as digits as its factorization.

12537271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2940, while the sum is 28.

The square root of 12537271 is about 3540.8008981020. The cubic root of 12537271 is about 232.3098750159.

The spelling of 12537271 in words is "twelve million, five hundred thirty-seven thousand, two hundred seventy-one".