130668 has 12 divisors (see below), whose sum is σ = 304920. Its totient is φ = 43552.

The previous prime is 130657. The next prime is 130681. The reversal of 130668 is 866031.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

130668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5433 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (25410).

2¹³⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

130668 is an abundant number, since it is smaller than the sum of its proper divisors (174252).

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

130668 is a wasteful number, since it uses less digits than its factorization.

130668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10896 (or 10894 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 130668 is about 361.4802899191. The cubic root of 130668 is about 50.7445900063.

Adding to 130668 its reverse (866031), we get a palindrome (996699).

The spelling of 130668 in words is "one hundred thirty thousand, six hundred sixty-eight".