12837491 has 2 divisors, whose sum is σ = 12837492. Its totient is φ = 12837490.

The previous prime is 12837479. The next prime is 12837493. The reversal of 12837491 is 19473821.

It is a strong prime.

It is an emirp because it is prime and its reverse (19473821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12837491 is a prime.

Together with 12837493, 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 (12837493) 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 as a sum of consecutive naturals, namely, 6418745 + 6418746.

It is an arithmetic number, because the mean of its divisors is an integer number (6418746).

Almost surely, 2^12837491 is an apocalyptic number.

12837491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12837491 is an equidigital number, since it uses as much as digits as its factorization.

12837491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 12837491 is about 3582.9444595193. The cubic root of 12837491 is about 234.1495805018.

The spelling of 12837491 in words is "twelve million, eight hundred thirty-seven thousand, four hundred ninety-one".