12277129 has 2 divisors, whose sum is σ = 12277130. Its totient is φ = 12277128.

The previous prime is 12277127. The next prime is 12277151. The reversal of 12277129 is 92177221.

It is a happy number.

12277129 is digitally balanced in base 3, 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., 8277129 + 4000000 = 2877^2 + 2000^2 .

It is an emirp because it is prime and its reverse (92177221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12277129 - 2¹ = 12277127 is a prime.

Together with 12277127, it forms a pair of twin primes.

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 12277129.

It is not a weakly prime, because it can be changed into another prime (12277127) 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, 6138564 + 6138565.

It is an arithmetic number, because the mean of its divisors is an integer number (6138565).

Almost surely, 2^12277129 is an apocalyptic number.

It is an amenable number.

12277129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12277129 is an equidigital number, since it uses as much as digits as its factorization.

12277129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 31.

The square root of 12277129 is about 3503.8734280793. The cubic root of 12277129 is about 230.6918612799.

The spelling of 12277129 in words is "twelve million, two hundred seventy-seven thousand, one hundred twenty-nine".