12799191 has 4 divisors (see below), whose sum is σ = 17065592. Its totient is φ = 8532792.

The previous prime is 12799183. The next prime is 12799207. The reversal of 12799191 is 19199721.

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

It is not a de Polignac number, because 12799191 - 2³ = 12799183 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 (12799091) 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, 2133196 + ... + 2133201.

It is an arithmetic number, because the mean of its divisors is an integer number (4266398).

Almost surely, 2^12799191 is an apocalyptic number.

12799191 is a deficient number, since it is larger than the sum of its proper divisors (4266401).

12799191 is an equidigital number, since it uses as much as digits as its factorization.

12799191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266400.

The product of its digits is 10206, while the sum is 39.

The square root of 12799191 is about 3577.5957010260. The cubic root of 12799191 is about 233.9164907650.

The spelling of 12799191 in words is "twelve million, seven hundred ninety-nine thousand, one hundred ninety-one".