12182197 has 4 divisors (see below), whose sum is σ = 12214720. Its totient is φ = 12149676.

The previous prime is 12182189. The next prime is 12182243. The reversal of 12182197 is 79128121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79128121 = 1301 ⋅60821.

It is a cyclic number.

It is not a de Polignac number, because 12182197 - 2³ = 12182189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15693 + ... + 16450.

It is an arithmetic number, because the mean of its divisors is an integer number (3053680).

Almost surely, 2^12182197 is an apocalyptic number.

It is an amenable number.

12182197 is a deficient number, since it is larger than the sum of its proper divisors (32523).

12182197 is an equidigital number, since it uses as much as digits as its factorization.

12182197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32522.

The product of its digits is 2016, while the sum is 31.

The square root of 12182197 is about 3490.3004168696. The cubic root of 12182197 is about 230.0957194530.

The spelling of 12182197 in words is "twelve million, one hundred eighty-two thousand, one hundred ninety-seven".