13218114 has 64 divisors (see below), whose sum is σ = 33352704. Its totient is φ = 3398976.

The previous prime is 13218097. The next prime is 13218131. The reversal of 13218114 is 41181231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13218097) and next prime (13218131).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23197 + ... + 23759.

It is an arithmetic number, because the mean of its divisors is an integer number (521136).

Almost surely, 2^13218114 is an apocalyptic number.

13218114 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13218114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16676352).

13218114 is an abundant number, since it is smaller than the sum of its proper divisors (20134590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13218114 is a wasteful number, since it uses less digits than its factorization.

13218114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631.

The product of its digits is 192, while the sum is 21.

The square root of 13218114 is about 3635.6724274885. The cubic root of 13218114 is about 236.4412051937.

Adding to 13218114 its reverse (41181231), we get a palindrome (54399345).

The spelling of 13218114 in words is "thirteen million, two hundred eighteen thousand, one hundred fourteen".