12248645 has 4 divisors (see below), whose sum is σ = 14698380. Its totient is φ = 9798912.

The previous prime is 12248633. The next prime is 12248647. The reversal of 12248645 is 54684221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54684221 = 2767 ⋅19763.

It can be written as a sum of positive squares in 2 ways, for example, as 8958049 + 3290596 = 2993^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 12248645 - 2⁸ = 12248389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12248647) 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, 1224860 + ... + 1224869.

It is an arithmetic number, because the mean of its divisors is an integer number (3674595).

Almost surely, 2^12248645 is an apocalyptic number.

It is an amenable number.

12248645 is a deficient number, since it is larger than the sum of its proper divisors (2449735).

12248645 is an equidigital number, since it uses as much as digits as its factorization.

12248645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449734.

The product of its digits is 15360, while the sum is 32.

The square root of 12248645 is about 3499.8064232183. The cubic root of 12248645 is about 230.5133147777.

The spelling of 12248645 in words is "twelve million, two hundred forty-eight thousand, six hundred forty-five".