12045613 has 4 divisors (see below), whose sum is σ = 12073248. Its totient is φ = 12017980.

The previous prime is 12045611. The next prime is 12045619. The reversal of 12045613 is 31654021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12045613 - 2¹ = 12045611 is a prime.

It is a super-3 number, since 3×12045613³ (a number of 22 digits) contains 333 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 (12045611) 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, 13153 + ... + 14038.

It is an arithmetic number, because the mean of its divisors is an integer number (3018312).

Almost surely, 2^12045613 is an apocalyptic number.

It is an amenable number.

12045613 is a deficient number, since it is larger than the sum of its proper divisors (27635).

12045613 is an equidigital number, since it uses as much as digits as its factorization.

12045613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27634.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12045613 is about 3470.6790401880. The cubic root of 12045613 is about 229.2325586979.

Adding to 12045613 its reverse (31654021), we get a palindrome (43699634).

The spelling of 12045613 in words is "twelve million, forty-five thousand, six hundred thirteen".