12863194 has 4 divisors (see below), whose sum is σ = 19294794. Its totient is φ = 6431596.

The previous prime is 12863177. The next prime is 12863251. The reversal of 12863194 is 49136821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10017225 + 2845969 = 3165^2 + 1687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215797 + ... + 3215800.

Almost surely, 2^12863194 is an apocalyptic number.

12863194 is a deficient number, since it is larger than the sum of its proper divisors (6431600).

12863194 is an equidigital number, since it uses as much as digits as its factorization.

12863194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431599.

The product of its digits is 10368, while the sum is 34.

The square root of 12863194 is about 3586.5295203023. The cubic root of 12863194 is about 234.3057463892.

The spelling of 12863194 in words is "twelve million, eight hundred sixty-three thousand, one hundred ninety-four".