12426166 has 4 divisors (see below), whose sum is σ = 18639252. Its totient is φ = 6213082.

The previous prime is 12426151. The next prime is 12426173. The reversal of 12426166 is 66162421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3106540 + ... + 3106543.

It is an arithmetic number, because the mean of its divisors is an integer number (4659813).

Almost surely, 2^12426166 is an apocalyptic number.

12426166 is a deficient number, since it is larger than the sum of its proper divisors (6213086).

12426166 is an equidigital number, since it uses as much as digits as its factorization.

12426166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213085.

The product of its digits is 3456, while the sum is 28.

The square root of 12426166 is about 3525.0767367534. The cubic root of 12426166 is about 231.6215962791.

Adding to 12426166 its reverse (66162421), we get a palindrome (78588587).

The spelling of 12426166 in words is "twelve million, four hundred twenty-six thousand, one hundred sixty-six".