12147253 has 4 divisors (see below), whose sum is σ = 12156928. Its totient is φ = 12137580.

The previous prime is 12147221. The next prime is 12147263. The reversal of 12147253 is 35274121.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35274121 = 29 ⋅1216349.

It is a cyclic number.

It is not a de Polignac number, because 12147253 - 2⁵ = 12147221 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 (12147203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2613 + ... + 5578.

It is an arithmetic number, because the mean of its divisors is an integer number (3039232).

Almost surely, 2^12147253 is an apocalyptic number.

It is an amenable number.

12147253 is a deficient number, since it is larger than the sum of its proper divisors (9675).

12147253 is an equidigital number, since it uses as much as digits as its factorization.

12147253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674.

The product of its digits is 1680, while the sum is 25.

The square root of 12147253 is about 3485.2909491174. The cubic root of 12147253 is about 229.8755028812.

It can be divided in two parts, 121 and 47253, that added together give a palindrome (47374).

The spelling of 12147253 in words is "twelve million, one hundred forty-seven thousand, two hundred fifty-three".