12734537 has 2 divisors, whose sum is σ = 12734538. Its totient is φ = 12734536.

The previous prime is 12734471. The next prime is 12734539. The reversal of 12734537 is 73543721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 89401 = 3556^2 + 299^2 .

It is an emirp because it is prime and its reverse (73543721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12734537 - 2¹⁸ = 12472393 is a prime.

Together with 12734539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12734539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6367268 + 6367269.

It is an arithmetic number, because the mean of its divisors is an integer number (6367269).

Almost surely, 2^12734537 is an apocalyptic number.

It is an amenable number.

12734537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12734537 is an equidigital number, since it uses as much as digits as its factorization.

12734537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 32.

The square root of 12734537 is about 3568.5483042828. The cubic root of 12734537 is about 233.5219560962.

The spelling of 12734537 in words is "twelve million, seven hundred thirty-four thousand, five hundred thirty-seven".