1130218 has 4 divisors (see below), whose sum is σ = 1695330.
Its totient is φ = 565108.
The previous prime is 1130191. The next prime is 1130237. The reversal of 1130218 is 8120311.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8120311 = 23 ⋅353057.
It can be written as a sum of positive squares in only one way, i.e., 915849 + 214369 = 957^2 + 463^2
It is an Ulam number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282553 + ... + 282556.
21130218 is an apocalyptic number.
1130218 is a deficient number, since it is larger than the sum of its proper divisors (565112).
1130218 is an equidigital number, since it uses as much as digits as its factorization.
1130218 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 565111.
The product of its (nonzero) digits is 48, while the sum is 16.
The square root of 1130218 is about 1063.1171149032.
The cubic root of 1130218 is about 104.1647413689.
Adding to 1130218 its reverse (8120311), we get a palindrome (9250529).
The spelling of 1130218 in words is "one million, one hundred thirty thousand, two hundred eighteen".