130818 has 8 divisors (see below), whose sum is σ = 261648. Its totient is φ = 43604.

The previous prime is 130817. The next prime is 130829. The reversal of 130818 is 818031.

It is a happy number.

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

130818 is an admirable number.

It is a super-2 number, since 2×130818² = 34226698248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130794 and 130803.

It is not an unprimeable number, because it can be changed into a prime (130811) 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, 10896 + ... + 10907.

It is an arithmetic number, because the mean of its divisors is an integer number (32706).

2¹³⁰⁸¹⁸ is an apocalyptic number.

130818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

130818 is a wasteful number, since it uses less digits than its factorization.

130818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21808.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 130818 is about 361.6877106013. The cubic root of 130818 is about 50.7639999555.

Adding to 130818 its reverse (818031), we get a palindrome (948849).

It can be divided in two parts, 1308 and 18, that added together give a triangular number (1326 = T₅₁).

The spelling of 130818 in words is "one hundred thirty thousand, eight hundred eighteen".