12129707 has 2 divisors, whose sum is σ = 12129708. Its totient is φ = 12129706.

The previous prime is 12129701. The next prime is 12129731. The reversal of 12129707 is 70792121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12129707 - 2¹⁴ = 12113323 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12129707.

It is not a weakly prime, because it can be changed into another prime (12129701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6064853 + 6064854.

It is an arithmetic number, because the mean of its divisors is an integer number (6064854).

Almost surely, 2^12129707 is an apocalyptic number.

12129707 is a deficient number, since it is larger than the sum of its proper divisors (1).

12129707 is an equidigital number, since it uses as much as digits as its factorization.

12129707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 12129707 is about 3482.7728895235. The cubic root of 12129707 is about 229.7647689527.

The spelling of 12129707 in words is "twelve million, one hundred twenty-nine thousand, seven hundred seven".