12863245 has 4 divisors (see below), whose sum is σ = 15435900. Its totient is φ = 10290592.

The previous prime is 12863177. The next prime is 12863251. The reversal of 12863245 is 54236821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54236821 = 179 ⋅302999.

It can be written as a sum of positive squares in 2 ways, for example, as 6702921 + 6160324 = 2589^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12863245 - 2⁷ = 12863117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286320 + ... + 1286329.

It is an arithmetic number, because the mean of its divisors is an integer number (3858975).

Almost surely, 2^12863245 is an apocalyptic number.

It is an amenable number.

12863245 is a deficient number, since it is larger than the sum of its proper divisors (2572655).

12863245 is an equidigital number, since it uses as much as digits as its factorization.

12863245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572654.

The product of its digits is 11520, while the sum is 31.

The square root of 12863245 is about 3586.5366302326. The cubic root of 12863245 is about 234.3060560473.

The spelling of 12863245 in words is "twelve million, eight hundred sixty-three thousand, two hundred forty-five".