12193306 has 4 divisors (see below), whose sum is σ = 18289962. Its totient is φ = 6096652.

The previous prime is 12193297. The next prime is 12193309. The reversal of 12193306 is 60339121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60339121 = 269 ⋅224309.

It can be written as a sum of positive squares in only one way, i.e., 10208025 + 1985281 = 3195^2 + 1409^2 .

It is a super-2 number, since 2×12193306² = 297353422419272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12193309) 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, 3048325 + ... + 3048328.

Almost surely, 2^12193306 is an apocalyptic number.

12193306 is a deficient number, since it is larger than the sum of its proper divisors (6096656).

12193306 is an equidigital number, since it uses as much as digits as its factorization.

12193306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096655.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 12193306 is about 3491.8914645218. The cubic root of 12193306 is about 230.1656399761.

The spelling of 12193306 in words is "twelve million, one hundred ninety-three thousand, three hundred six".