12036946 has 4 divisors (see below), whose sum is σ = 18055422. Its totient is φ = 6018472.

The previous prime is 12036919. The next prime is 12036949. The reversal of 12036946 is 64963021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64963021 = 83 ⋅782687.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 168921 = 3445^2 + 411^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12036949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3009235 + ... + 3009238.

Almost surely, 2^12036946 is an apocalyptic number.

12036946 is a deficient number, since it is larger than the sum of its proper divisors (6018476).

12036946 is an equidigital number, since it uses as much as digits as its factorization.

12036946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018475.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 12036946 is about 3469.4302125853. The cubic root of 12036946 is about 229.1775667469.

Adding to 12036946 its reverse (64963021), we get a palindrome (76999967).

The spelling of 12036946 in words is "twelve million, thirty-six thousand, nine hundred forty-six".