12660253 has 8 divisors (see below), whose sum is σ = 13199072. Its totient is φ = 12131856.

The previous prime is 12660229. The next prime is 12660283. The reversal of 12660253 is 35206621.

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

It is a de Polignac number, because none of the positive numbers 2^k-12660253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660203) 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 in 7 ways as a sum of consecutive naturals, for example, 75 + ... + 5032.

It is an arithmetic number, because the mean of its divisors is an integer number (1649884).

Almost surely, 2^12660253 is an apocalyptic number.

It is an amenable number.

12660253 is a deficient number, since it is larger than the sum of its proper divisors (538819).

12660253 is an equidigital number, since it uses as much as digits as its factorization.

12660253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12660253 is about 3558.1249275426. The cubic root of 12660253 is about 233.0670047428.

Adding to 12660253 its reverse (35206621), we get a palindrome (47866874).

The spelling of 12660253 in words is "twelve million, six hundred sixty thousand, two hundred fifty-three".