12161027 has 2 divisors, whose sum is σ = 12161028. Its totient is φ = 12161026.

The previous prime is 12161011. The next prime is 12161029. The reversal of 12161027 is 72016121.

It is a strong prime.

It is an emirp because it is prime and its reverse (72016121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12161027 - 2⁴ = 12161011 is a prime.

Together with 12161029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12161029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6080513 + 6080514.

It is an arithmetic number, because the mean of its divisors is an integer number (6080514).

Almost surely, 2^12161027 is an apocalyptic number.

12161027 is a deficient number, since it is larger than the sum of its proper divisors (1).

12161027 is an equidigital number, since it uses as much as digits as its factorization.

12161027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 12161027 is about 3487.2664079476. The cubic root of 12161027 is about 229.9623567884.

Adding to 12161027 its reverse (72016121), we get a palindrome (84177148).

The spelling of 12161027 in words is "twelve million, one hundred sixty-one thousand, twenty-seven".