12705349 has 2 divisors, whose sum is σ = 12705350. Its totient is φ = 12705348.

The previous prime is 12705323. The next prime is 12705377. The reversal of 12705349 is 94350721.

12705349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 4809249 = 2810^2 + 2193^2 .

It is a cyclic number.

It is not a de Polignac number, because 12705349 - 2⁵ = 12705317 is a prime.

It is a super-2 number, since 2×12705349² = 322851786423602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12705349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12765349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6352674 + 6352675.

It is an arithmetic number, because the mean of its divisors is an integer number (6352675).

Almost surely, 2^12705349 is an apocalyptic number.

It is an amenable number.

12705349 is a deficient number, since it is larger than the sum of its proper divisors (1).

12705349 is an equidigital number, since it uses as much as digits as its factorization.

12705349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 12705349 is about 3564.4563400328. The cubic root of 12705349 is about 233.3434061411.

The spelling of 12705349 in words is "twelve million, seven hundred five thousand, three hundred forty-nine".