12197026 has 4 divisors (see below), whose sum is σ = 18295542. Its totient is φ = 6098512.

The previous prime is 12196999. The next prime is 12197027. The reversal of 12197026 is 62079121.

It is a happy number.

12197026 is nontrivially palindromic in base 11.

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

It can be written as a sum of positive squares in only one way, i.e., 10989225 + 1207801 = 3315^2 + 1099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12196985 and 12197003.

It is not an unprimeable number, because it can be changed into a prime (12197027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3049255 + ... + 3049258.

Almost surely, 2^12197026 is an apocalyptic number.

12197026 is a deficient number, since it is larger than the sum of its proper divisors (6098516).

12197026 is an equidigital number, since it uses as much as digits as its factorization.

12197026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6098515.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12197026 is about 3492.4240865050. The cubic root of 12197026 is about 230.1890443238.

The spelling of 12197026 in words is "twelve million, one hundred ninety-seven thousand, twenty-six".