5181218 has 16 divisors (see below), whose sum is σ = 9029184. Its totient is φ = 2183760.

The previous prime is 5181217. The next prime is 5181223. The reversal of 5181218 is 8121815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 3887.

It is an arithmetic number, because the mean of its divisors is an integer number (564324).

Almost surely, 2^5181218 is an apocalyptic number.

5181218 is a deficient number, since it is larger than the sum of its proper divisors (3847966).

5181218 is a wasteful number, since it uses less digits than its factorization.

5181218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137.

The product of its digits is 640, while the sum is 26.

The square root of 5181218 is about 2276.2288988588. The cubic root of 5181218 is about 173.0389834966.

The spelling of 5181218 in words is "five million, one hundred eighty-one thousand, two hundred eighteen".