12426197 has 4 divisors (see below), whose sum is σ = 14201376. Its totient is φ = 10651020.

The previous prime is 12426173. The next prime is 12426223. The reversal of 12426197 is 79162421.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12426197 - 2²⁰ = 11377621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426107) 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, 887579 + ... + 887592.

It is an arithmetic number, because the mean of its divisors is an integer number (3550344).

Almost surely, 2^12426197 is an apocalyptic number.

It is an amenable number.

12426197 is a deficient number, since it is larger than the sum of its proper divisors (1775179).

12426197 is an equidigital number, since it uses as much as digits as its factorization.

12426197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775178.

The product of its digits is 6048, while the sum is 32.

The square root of 12426197 is about 3525.0811338181. The cubic root of 12426197 is about 231.6217888905.

The spelling of 12426197 in words is "twelve million, four hundred twenty-six thousand, one hundred ninety-seven".