12671611 has 4 divisors (see below), whose sum is σ = 12910752. Its totient is φ = 12432472.

The previous prime is 12671609. The next prime is 12671621. The reversal of 12671611 is 11617621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11617621 = 313 ⋅37117.

It is a cyclic number.

It is not a de Polignac number, because 12671611 - 2¹ = 12671609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12671621) 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, 119491 + ... + 119596.

It is an arithmetic number, because the mean of its divisors is an integer number (3227688).

Almost surely, 2^12671611 is an apocalyptic number.

12671611 is a deficient number, since it is larger than the sum of its proper divisors (239141).

12671611 is an equidigital number, since it uses as much as digits as its factorization.

12671611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239140.

The product of its digits is 504, while the sum is 25.

The square root of 12671611 is about 3559.7206351061. The cubic root of 12671611 is about 233.1366817023.

The spelling of 12671611 in words is "twelve million, six hundred seventy-one thousand, six hundred eleven".