130305768 has 32 divisors (see below), whose sum is σ = 326751360. Its totient is φ = 43303680.

The previous prime is 130305757. The next prime is 130305817. The reversal of 130305768 is 867503031.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 16143.

It is an arithmetic number, because the mean of its divisors is an integer number (10210980).

Almost surely, 2^130305768 is an apocalyptic number.

It is an amenable number.

130305768 is an abundant number, since it is smaller than the sum of its proper divisors (196445592).

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

130305768 is a wasteful number, since it uses less digits than its factorization.

130305768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16457 (or 16453 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 130305768 is about 11415.1551894838. The cubic root of 130305768 is about 506.9765598055.

Adding to 130305768 its reverse (867503031), we get a palindrome (997808799).

The spelling of 130305768 in words is "one hundred thirty million, three hundred five thousand, seven hundred sixty-eight".