12195371 has 2 divisors, whose sum is σ = 12195372. Its totient is φ = 12195370.

The previous prime is 12195361. The next prime is 12195373. The reversal of 12195371 is 17359121.

12195371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12195371 is a prime.

Together with 12195373, 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 (12195373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097685 + 6097686.

It is an arithmetic number, because the mean of its divisors is an integer number (6097686).

Almost surely, 2^12195371 is an apocalyptic number.

12195371 is a deficient number, since it is larger than the sum of its proper divisors (1).

12195371 is an equidigital number, since it uses as much as digits as its factorization.

12195371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 29.

The square root of 12195371 is about 3492.1871370246. The cubic root of 12195371 is about 230.1786324934.

The spelling of 12195371 in words is "twelve million, one hundred ninety-five thousand, three hundred seventy-one".