5121218 has 8 divisors (see below), whose sum is σ = 7692300. Its totient is φ = 2557120.

The previous prime is 5121211. The next prime is 5121223. The reversal of 5121218 is 8121215.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5121169 + 49 = 2263^2 + 7^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5121218.

It is not an unprimeable number, because it can be changed into a prime (5121211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878 + ... + 3318.

Almost surely, 2^5121218 is an apocalyptic number.

5121218 is a deficient number, since it is larger than the sum of its proper divisors (2571082).

5121218 is a wasteful number, since it uses less digits than its factorization.

5121218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492.

The product of its digits is 160, while the sum is 20.

The square root of 5121218 is about 2263.0108263108. The cubic root of 5121218 is about 172.3684413140.

The spelling of 5121218 in words is "five million, one hundred twenty-one thousand, two hundred eighteen".