12613457 has 2 divisors, whose sum is σ = 12613458. Its totient is φ = 12613456.

The previous prime is 12613409. The next prime is 12613459. The reversal of 12613457 is 75431621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11015761 + 1597696 = 3319^2 + 1264^2 .

It is an emirp because it is prime and its reverse (75431621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12613457 - 2¹⁰ = 12612433 is a prime.

Together with 12613459, 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 (12613459) 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 as a sum of consecutive naturals, namely, 6306728 + 6306729.

It is an arithmetic number, because the mean of its divisors is an integer number (6306729).

Almost surely, 2^12613457 is an apocalyptic number.

It is an amenable number.

12613457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12613457 is an equidigital number, since it uses as much as digits as its factorization.

12613457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 12613457 is about 3551.5429041474. The cubic root of 12613457 is about 232.7794889189.

The spelling of 12613457 in words is "twelve million, six hundred thirteen thousand, four hundred fifty-seven".