12043613 has 8 divisors (see below), whose sum is σ = 12631800. Its totient is φ = 11467008.

The previous prime is 12043607. The next prime is 12043621. The reversal of 12043613 is 31634021.

It can be written as a sum of positive squares in 4 ways, for example, as 5299204 + 6744409 = 2302^2 + 2597^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12043613 - 2⁴ = 12043597 is a prime.

It is a super-2 number, since 2×12043613² = 290097228187538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728 + ... + 4961.

It is an arithmetic number, because the mean of its divisors is an integer number (1578975).

Almost surely, 2^12043613 is an apocalyptic number.

It is an amenable number.

12043613 is a deficient number, since it is larger than the sum of its proper divisors (588187).

12043613 is an equidigital number, since it uses as much as digits as its factorization.

12043613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5791.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 12043613 is about 3470.3909001725. The cubic root of 12043613 is about 229.2198710775.

Adding to 12043613 its reverse (31634021), we get a palindrome (43677634).

The spelling of 12043613 in words is "twelve million, forty-three thousand, six hundred thirteen".