12036243 has 4 divisors (see below), whose sum is σ = 16048328. Its totient is φ = 8024160.

The previous prime is 12036239. The next prime is 12036257. The reversal of 12036243 is 34263021.

It is a happy number.

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

It is not a de Polignac number, because 12036243 - 2² = 12036239 is a prime.

It is a super-2 number, since 2×12036243² = 289742291110098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12036223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006038 + ... + 2006043.

It is an arithmetic number, because the mean of its divisors is an integer number (4012082).

Almost surely, 2^12036243 is an apocalyptic number.

12036243 is a deficient number, since it is larger than the sum of its proper divisors (4012085).

12036243 is an equidigital number, since it uses as much as digits as its factorization.

12036243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012084.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 12036243 is about 3469.3288976400. The cubic root of 12036243 is about 229.1731050680.

Adding to 12036243 its reverse (34263021), we get a palindrome (46299264).

It can be divided in two parts, 120 and 36243, that added together give a palindrome (36363).

The spelling of 12036243 in words is "twelve million, thirty-six thousand, two hundred forty-three".