12162247 has 2 divisors, whose sum is σ = 12162248. Its totient is φ = 12162246.

The previous prime is 12162211. The next prime is 12162253. The reversal of 12162247 is 74226121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12162247 - 2¹¹ = 12160199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12162257) 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, 6081123 + 6081124.

It is an arithmetic number, because the mean of its divisors is an integer number (6081124).

Almost surely, 2^12162247 is an apocalyptic number.

12162247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12162247 is an equidigital number, since it uses as much as digits as its factorization.

12162247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 12162247 is about 3487.4413256713. The cubic root of 12162247 is about 229.9700465088.

Adding to 12162247 its reverse (74226121), we get a palindrome (86388368).

The spelling of 12162247 in words is "twelve million, one hundred sixty-two thousand, two hundred forty-seven".