12248729 has 2 divisors, whose sum is σ = 12248730. Its totient is φ = 12248728.

The previous prime is 12248683. The next prime is 12248741. The reversal of 12248729 is 92784221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6512704 + 5736025 = 2552^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 12248729 - 2⁸ = 12248473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12248779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124364 + 6124365.

It is an arithmetic number, because the mean of its divisors is an integer number (6124365).

Almost surely, 2^12248729 is an apocalyptic number.

It is an amenable number.

12248729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12248729 is an equidigital number, since it uses as much as digits as its factorization.

12248729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 12248729 is about 3499.8184238614. The cubic root of 12248729 is about 230.5138417224.

The spelling of 12248729 in words is "twelve million, two hundred forty-eight thousand, seven hundred twenty-nine".