12742013 has 2 divisors, whose sum is σ = 12742014. Its totient is φ = 12742012.

The previous prime is 12742007. The next prime is 12742031. The reversal of 12742013 is 31024721.

Together with next prime (12742031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12545764 + 196249 = 3542^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 12742013 - 2¹⁰ = 12740989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12742003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371006 + 6371007.

It is an arithmetic number, because the mean of its divisors is an integer number (6371007).

Almost surely, 2^12742013 is an apocalyptic number.

It is an amenable number.

12742013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12742013 is an equidigital number, since it uses as much as digits as its factorization.

12742013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12742013 is about 3569.5956353626. The cubic root of 12742013 is about 233.5676446731.

Adding to 12742013 its reverse (31024721), we get a palindrome (43766734).

The spelling of 12742013 in words is "twelve million, seven hundred forty-two thousand, thirteen".