130205106 has 12 divisors (see below), whose sum is σ = 282111102. Its totient is φ = 43401696.

The previous prime is 130205083. The next prime is 130205111. The reversal of 130205106 is 601502031.

130205106 is a `hidden beast` number, since 130 + 20 + 510 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 107308881 + 22896225 = 10359^2 + 4785^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7233617 = 130205106 / (1 + 3 + 0 + 2 + 0 + 5 + 1 + 0 + 6).

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, 3616791 + ... + 3616826.

Almost surely, 2^130205106 is an apocalyptic number.

130205106 is an abundant number, since it is smaller than the sum of its proper divisors (151905996).

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

130205106 is a wasteful number, since it uses less digits than its factorization.

130205106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233625 (or 7233622 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 130205106 is about 11410.7451991533. The cubic root of 130205106 is about 506.8459786806.

Adding to 130205106 its reverse (601502031), we get a palindrome (731707137).

The spelling of 130205106 in words is "one hundred thirty million, two hundred five thousand, one hundred six".