12355171 has 2 divisors, whose sum is σ = 12355172. Its totient is φ = 12355170.

The previous prime is 12355169. The next prime is 12355193. The reversal of 12355171 is 17155321.

12355171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12355171 - 2¹ = 12355169 is a prime.

Together with 12355169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12355271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177585 + 6177586.

It is an arithmetic number, because the mean of its divisors is an integer number (6177586).

Almost surely, 2^12355171 is an apocalyptic number.

12355171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12355171 is an equidigital number, since it uses as much as digits as its factorization.

12355171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 25.

The square root of 12355171 is about 3514.9923186260. The cubic root of 12355171 is about 231.1796419996.

The spelling of 12355171 in words is "twelve million, three hundred fifty-five thousand, one hundred seventy-one".