130820718 has 32 divisors (see below), whose sum is σ = 300706560. Its totient is φ = 37166400.

The previous prime is 130820717. The next prime is 130820731. The reversal of 130820718 is 817028031.

It is a happy number.

It is a super-2 number, since 2×130820718² = 34228120516071048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130820717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183 + ... + 16218.

It is an arithmetic number, because the mean of its divisors is an integer number (9397080).

Almost surely, 2^130820718 is an apocalyptic number.

130820718 is an abundant number, since it is smaller than the sum of its proper divisors (169885842).

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

130820718 is a wasteful number, since it uses less digits than its factorization.

130820718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17592.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 130820718 is about 11437.6884902501. The cubic root of 130820718 is about 507.6435152692.

Adding to 130820718 its reverse (817028031), we get a palindrome (947848749).

The spelling of 130820718 in words is "one hundred thirty million, eight hundred twenty thousand, seven hundred eighteen".