130205105 has 4 divisors (see below), whose sum is σ = 156246132. Its totient is φ = 104164080.

The previous prime is 130205083. The next prime is 130205111. The reversal of 130205105 is 501502031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501502031 = 271 ⋅1850561.

It can be written as a sum of positive squares in 2 ways, for example, as 16313521 + 113891584 = 4039^2 + 10672^2 .

It is not a de Polignac number, because 130205105 - 2⁸ = 130204849 is a prime.

It is a super-2 number, since 2×130205105² = 33906738736122050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13020506 + ... + 13020515.

It is an arithmetic number, because the mean of its divisors is an integer number (39061533).

Almost surely, 2^130205105 is an apocalyptic number.

It is an amenable number.

130205105 is a deficient number, since it is larger than the sum of its proper divisors (26041027).

130205105 is an equidigital number, since it uses as much as digits as its factorization.

130205105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26041026.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 130205105 is about 11410.7451553349. The cubic root of 130205105 is about 506.8459773831.

Adding to 130205105 its reverse (501502031), we get a palindrome (631707136).

The spelling of 130205105 in words is "one hundred thirty million, two hundred five thousand, one hundred five".