12432243 has 4 divisors (see below), whose sum is σ = 16576328. Its totient is φ = 8288160.

The previous prime is 12432241. The next prime is 12432247. The reversal of 12432243 is 34223421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34223421 = 3 ⋅11407807.

It is not a de Polignac number, because 12432243 - 2¹ = 12432241 is a prime.

It is a super-2 number, since 2×12432243² = 309121332022098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12432241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072038 + ... + 2072043.

It is an arithmetic number, because the mean of its divisors is an integer number (4144082).

Almost surely, 2^12432243 is an apocalyptic number.

12432243 is a deficient number, since it is larger than the sum of its proper divisors (4144085).

12432243 is an equidigital number, since it uses as much as digits as its factorization.

12432243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144084.

The product of its digits is 1152, while the sum is 21.

The square root of 12432243 is about 3525.9385984444. The cubic root of 12432243 is about 231.6593482037.

Adding to 12432243 its reverse (34223421), we get a palindrome (46655664).

It can be divided in two parts, 1243 and 2243, that added together give a triangular number (3486 = T₈₃).

The spelling of 12432243 in words is "twelve million, four hundred thirty-two thousand, two hundred forty-three".