12963191 has 8 divisors (see below), whose sum is σ = 13600224. Its totient is φ = 12332320.

The previous prime is 12963173. The next prime is 12963229. The reversal of 12963191 is 19136921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12963191 - 2¹⁴ = 12946807 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 (12963151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3101 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (1700028).

Almost surely, 2^12963191 is an apocalyptic number.

12963191 is a deficient number, since it is larger than the sum of its proper divisors (637033).

12963191 is a wasteful number, since it uses less digits than its factorization.

12963191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081.

The product of its digits is 2916, while the sum is 32.

The square root of 12963191 is about 3600.4431671671. The cubic root of 12963191 is about 234.9113351947.

The spelling of 12963191 in words is "twelve million, nine hundred sixty-three thousand, one hundred ninety-one".