12305053 has 4 divisors (see below), whose sum is σ = 12637660. Its totient is φ = 11972448.

The previous prime is 12305039. The next prime is 12305057. The reversal of 12305053 is 35050321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 5555449 = 2598^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 12305053 - 2⁹ = 12304541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12305053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305057) 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, 166248 + ... + 166321.

It is an arithmetic number, because the mean of its divisors is an integer number (3159415).

Almost surely, 2^12305053 is an apocalyptic number.

It is an amenable number.

12305053 is a deficient number, since it is larger than the sum of its proper divisors (332607).

12305053 is an equidigital number, since it uses as much as digits as its factorization.

12305053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332606.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 12305053 is about 3507.8558978385. The cubic root of 12305053 is about 230.8666296579.

Adding to 12305053 its reverse (35050321), we get a palindrome (47355374).

The spelling of 12305053 in words is "twelve million, three hundred five thousand, fifty-three".