12205946 has 8 divisors (see below), whose sum is σ = 18755604. Its totient is φ = 5954080.

The previous prime is 12205933. The next prime is 12205957. The reversal of 12205946 is 64950221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12075625 + 130321 = 3475^2 + 361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74345 + ... + 74508.

Almost surely, 2^12205946 is an apocalyptic number.

12205946 is a deficient number, since it is larger than the sum of its proper divisors (6549658).

12205946 is a wasteful number, since it uses less digits than its factorization.

12205946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148896.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12205946 is about 3493.7009030540. The cubic root of 12205946 is about 230.2451450470.

The spelling of 12205946 in words is "twelve million, two hundred five thousand, nine hundred forty-six".