12841918 has 4 divisors (see below), whose sum is σ = 19262880. Its totient is φ = 6420958.

The previous prime is 12841909. The next prime is 12841921. The reversal of 12841918 is 81914821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81914821 = 29 ⋅2824649.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210478 + ... + 3210481.

It is an arithmetic number, because the mean of its divisors is an integer number (4815720).

Almost surely, 2^12841918 is an apocalyptic number.

12841918 is a deficient number, since it is larger than the sum of its proper divisors (6420962).

12841918 is an equidigital number, since it uses as much as digits as its factorization.

12841918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420961.

The product of its digits is 4608, while the sum is 34.

The square root of 12841918 is about 3583.5621942419. The cubic root of 12841918 is about 234.1764928495.

The spelling of 12841918 in words is "twelve million, eight hundred forty-one thousand, nine hundred eighteen".