1018219 has 4 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 983080.

The previous prime is 1018217. The next prime is 1018223. The reversal of 1018219 is 9128101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1018219 - 2¹ = 1018217 is a prime.

It is a super-2 number, since 2×1018219² = 2073539863922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1018219 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1018219.

It is not an unprimeable number, because it can be changed into a prime (1018217) 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, 17527 + ... + 17584.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^1018219 is an apocalyptic number.

1018219 is a deficient number, since it is larger than the sum of its proper divisors (35141).

1018219 is an equidigital number, since it uses as much as digits as its factorization.

1018219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35140.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1018219 is about 1009.0683822219. The cubic root of 1018219 is about 100.6036487497.

It can be divided in two parts, 10182 and 19, that added together give a palindrome (10201).

The spelling of 1018219 in words is "one million, eighteen thousand, two hundred nineteen".