5191218 has 48 divisors (see below), whose sum is σ = 12149280. Its totient is φ = 1596672.

The previous prime is 5191213. The next prime is 5191231. The reversal of 5191218 is 8121915.

It is a junction number, because it is equal to n+sod(n) for n = 5191191 and 5191200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14530 + ... + 14882.

It is an arithmetic number, because the mean of its divisors is an integer number (253110).

Almost surely, 2^5191218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5191218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6074640).

5191218 is an abundant number, since it is smaller than the sum of its proper divisors (6958062).

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

5191218 is a wasteful number, since it uses less digits than its factorization.

5191218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 420 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 5191218 is about 2278.4244556272. The cubic root of 5191218 is about 173.1502364737.

The spelling of 5191218 in words is "five million, one hundred ninety-one thousand, two hundred eighteen".