130205800 has 24 divisors (see below), whose sum is σ = 302728950. Its totient is φ = 52082240.

The previous prime is 130205773. The next prime is 130205819. The reversal of 130205800 is 8502031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 89832484 + 40373316 = 9478^2 + 6354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325315 + ... + 325714.

Almost surely, 2^130205800 is an apocalyptic number.

130205800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130205800 is an abundant number, since it is smaller than the sum of its proper divisors (172523150).

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

130205800 is a wasteful number, since it uses less digits than its factorization.

130205800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651045 (or 651036 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 130205800 is about 11410.7756090460. The cubic root of 130205800 is about 506.8468791842.

Adding to 130205800 its reverse (8502031), we get a palindrome (138707831).

The spelling of 130205800 in words is "one hundred thirty million, two hundred five thousand, eight hundred".