12064191 has 4 divisors (see below), whose sum is σ = 16085592. Its totient is φ = 8042792.

The previous prime is 12064163. The next prime is 12064207. The reversal of 12064191 is 19146021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19146021 = 3 ⋅6382007.

It is a cyclic number.

It is not a de Polignac number, because 12064191 - 2¹⁰ = 12063167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12064691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2010696 + ... + 2010701.

It is an arithmetic number, because the mean of its divisors is an integer number (4021398).

Almost surely, 2^12064191 is an apocalyptic number.

12064191 is a deficient number, since it is larger than the sum of its proper divisors (4021401).

12064191 is an equidigital number, since it uses as much as digits as its factorization.

12064191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021400.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12064191 is about 3473.3544305181. The cubic root of 12064191 is about 229.3503469459.

The spelling of 12064191 in words is "twelve million, sixty-four thousand, one hundred ninety-one".