130105 has 4 divisors (see below), whose sum is σ = 156132. Its totient is φ = 104080.

The previous prime is 130099. The next prime is 130121. The reversal of 130105 is 501031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97344 + 32761 = 312^2 + 181^2 .

It is not a de Polignac number, because 130105 - 2⁵ = 130073 is a prime.

It is a super-2 number, since 2×130105² = 33854622050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130091 and 130100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13006 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (39033).

2¹³⁰¹⁰⁵ is an apocalyptic number.

It is an amenable number.

130105 is a deficient number, since it is larger than the sum of its proper divisors (26027).

130105 is an equidigital number, since it uses as much as digits as its factorization.

130105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26026.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 130105 is about 360.7007069580. The cubic root of 130105 is about 50.6716052050.

Adding to 130105 its reverse (501031), we get a palindrome (631136).

The spelling of 130105 in words is "one hundred thirty thousand, one hundred five".