13218014 has 4 divisors (see below), whose sum is σ = 19827024. Its totient is φ = 6609006.

The previous prime is 13217969. The next prime is 13218019. The reversal of 13218014 is 41081231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13218019) 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 as a sum of consecutive naturals, namely, 3304502 + ... + 3304505.

It is an arithmetic number, because the mean of its divisors is an integer number (4956756).

Almost surely, 2^13218014 is an apocalyptic number.

13218014 is a deficient number, since it is larger than the sum of its proper divisors (6609010).

13218014 is an equidigital number, since it uses as much as digits as its factorization.

13218014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6609009.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 13218014 is about 3635.6586748483. The cubic root of 13218014 is about 236.4406089367.

Adding to 13218014 its reverse (41081231), we get a palindrome (54299245).

The spelling of 13218014 in words is "thirteen million, two hundred eighteen thousand, fourteen".