12316191 has 16 divisors (see below), whose sum is σ = 16848000. Its totient is φ = 8000288.

The previous prime is 12316181. The next prime is 12316219. The reversal of 12316191 is 19161321.

It is a cyclic number.

It is not a de Polignac number, because 12316191 - 2⁵ = 12316159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12316111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26140 + ... + 26606.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 2^12316191 is an apocalyptic number.

12316191 is a deficient number, since it is larger than the sum of its proper divisors (4531809).

12316191 is a wasteful number, since it uses less digits than its factorization.

12316191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 324, while the sum is 24.

The square root of 12316191 is about 3509.4431182169. The cubic root of 12316191 is about 230.9362654700.

The spelling of 12316191 in words is "twelve million, three hundred sixteen thousand, one hundred ninety-one".