12641191 has 8 divisors (see below), whose sum is σ = 13373280. Its totient is φ = 11924352.

The previous prime is 12641179. The next prime is 12641203. The reversal of 12641191 is 19114621.

12641191 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12641179) and next prime (12641203).

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 12641191 - 2⁷ = 12641063 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 (12641171) 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, 2086 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (1671660).

Almost surely, 2^12641191 is an apocalyptic number.

12641191 is a deficient number, since it is larger than the sum of its proper divisors (732089).

12641191 is an equidigital number, since it uses as much as digits as its factorization.

12641191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625.

The product of its digits is 432, while the sum is 25.

The square root of 12641191 is about 3555.4452604421. The cubic root of 12641191 is about 232.9499729886.

The spelling of 12641191 in words is "twelve million, six hundred forty-one thousand, one hundred ninety-one".