12963147 has 4 divisors (see below), whose sum is σ = 17284200. Its totient is φ = 8642096.

The previous prime is 12963143. The next prime is 12963151. The reversal of 12963147 is 74136921.

12963147 is digitally balanced in base 3, 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 an interprime number because it is at equal distance from previous prime (12963143) and next prime (12963151).

It is a cyclic number.

It is not a de Polignac number, because 12963147 - 2² = 12963143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12963143) 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, 2160522 + ... + 2160527.

It is an arithmetic number, because the mean of its divisors is an integer number (4321050).

Almost surely, 2^12963147 is an apocalyptic number.

12963147 is a deficient number, since it is larger than the sum of its proper divisors (4321053).

12963147 is an equidigital number, since it uses as much as digits as its factorization.

12963147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321052.

The product of its digits is 9072, while the sum is 33.

The square root of 12963147 is about 3600.4370568030. The cubic root of 12963147 is about 234.9110694136.

The spelling of 12963147 in words is "twelve million, nine hundred sixty-three thousand, one hundred forty-seven".