12817253 has 4 divisors (see below), whose sum is σ = 12863148. Its totient is φ = 12771360.

The previous prime is 12817213. The next prime is 12817307. The reversal of 12817253 is 35271821.

12817253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3678724 + 9138529 = 1918^2 + 3023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12817253 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 (12817213) 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, 22526 + ... + 23087.

It is an arithmetic number, because the mean of its divisors is an integer number (3215787).

Almost surely, 2^12817253 is an apocalyptic number.

It is an amenable number.

12817253 is a deficient number, since it is larger than the sum of its proper divisors (45895).

12817253 is an equidigital number, since it uses as much as digits as its factorization.

12817253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45894.

The product of its digits is 3360, while the sum is 29.

The square root of 12817253 is about 3580.1191320960. The cubic root of 12817253 is about 234.0264720338.

The spelling of 12817253 in words is "twelve million, eight hundred seventeen thousand, two hundred fifty-three".