12653247 has 4 divisors (see below), whose sum is σ = 16871000. Its totient is φ = 8435496.

The previous prime is 12653227. The next prime is 12653257. The reversal of 12653247 is 74235621.

12653247 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 is not a de Polignac number, because 12653247 - 2⁷ = 12653119 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 (12653227) 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, 2108872 + ... + 2108877.

It is an arithmetic number, because the mean of its divisors is an integer number (4217750).

Almost surely, 2^12653247 is an apocalyptic number.

12653247 is a deficient number, since it is larger than the sum of its proper divisors (4217753).

12653247 is an equidigital number, since it uses as much as digits as its factorization.

12653247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217752.

The product of its digits is 10080, while the sum is 30.

The square root of 12653247 is about 3557.1402839922. The cubic root of 12653247 is about 233.0240048457.

Adding to 12653247 its reverse (74235621), we get a palindrome (86888868).

The spelling of 12653247 in words is "twelve million, six hundred fifty-three thousand, two hundred forty-seven".