12043522 has 4 divisors (see below), whose sum is σ = 18065286. Its totient is φ = 6021760.

The previous prime is 12043501. The next prime is 12043529. The reversal of 12043522 is 22534021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22534021 = 43 ⋅524047.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 2989441 = 3009^2 + 1729^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12043522.

It is not an unprimeable number, because it can be changed into a prime (12043529) 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, 3010879 + ... + 3010882.

Almost surely, 2^12043522 is an apocalyptic number.

12043522 is a deficient number, since it is larger than the sum of its proper divisors (6021764).

12043522 is an equidigital number, since it uses as much as digits as its factorization.

12043522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021763.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12043522 is about 3470.3777892328. The cubic root of 12043522 is about 229.2192937574.

Adding to 12043522 its reverse (22534021), we get a palindrome (34577543).

It can be divided in two parts, 1204352 and 2, that multiplied together give a square (2408704 = 1552²).

The spelling of 12043522 in words is "twelve million, forty-three thousand, five hundred twenty-two".