12172163 has 2 divisors, whose sum is σ = 12172164. Its totient is φ = 12172162.

The previous prime is 12172157. The next prime is 12172177. The reversal of 12172163 is 36127121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12172163 - 2¹² = 12168067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12172133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086081 + 6086082.

It is an arithmetic number, because the mean of its divisors is an integer number (6086082).

Almost surely, 2^12172163 is an apocalyptic number.

12172163 is a deficient number, since it is larger than the sum of its proper divisors (1).

12172163 is an equidigital number, since it uses as much as digits as its factorization.

12172163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 12172163 is about 3488.8627086774. The cubic root of 12172163 is about 230.0325284806.

Adding to 12172163 its reverse (36127121), we get a palindrome (48299284).

The spelling of 12172163 in words is "twelve million, one hundred seventy-two thousand, one hundred sixty-three".