12729061 has 2 divisors, whose sum is σ = 12729062. Its totient is φ = 12729060.

The previous prime is 12729029. The next prime is 12729091. The reversal of 12729061 is 16092721.

It is a happy number.

12729061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7392961 + 5336100 = 2719^2 + 2310^2 .

It is an emirp because it is prime and its reverse (16092721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12729061 - 2⁵ = 12729029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12729091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6364530 + 6364531.

It is an arithmetic number, because the mean of its divisors is an integer number (6364531).

Almost surely, 2^12729061 is an apocalyptic number.

It is an amenable number.

12729061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12729061 is an equidigital number, since it uses as much as digits as its factorization.

12729061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12729061 is about 3567.7809630077. The cubic root of 12729061 is about 233.4884789055.

The spelling of 12729061 in words is "twelve million, seven hundred twenty-nine thousand, sixty-one".