1813318 has 16 divisors (see below), whose sum is σ = 2963520. Its totient is φ = 827136.

The previous prime is 1813313. The next prime is 1813319. The reversal of 1813318 is 8133181.

It is a super-3 number, since 3×1813318³ = 17887233346414780296, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1813292 and 1813301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 2881.

It is an arithmetic number, because the mean of its divisors is an integer number (185220).

2^1813318 is an apocalyptic number.

1813318 is a deficient number, since it is larger than the sum of its proper divisors (1150202).

1813318 is a wasteful number, since it uses less digits than its factorization.

1813318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 576, while the sum is 25.

The square root of 1813318 is about 1346.5949650879. The cubic root of 1813318 is about 121.9433132689.

Adding to 1813318 its reverse (8133181), we get a palindrome (9946499).

The spelling of 1813318 in words is "one million, eight hundred thirteen thousand, three hundred eighteen".