130181 has 6 divisors (see below), whose sum is σ = 136710. Its totient is φ = 123816.

The previous prime is 130171. The next prime is 130183. The reversal of 130181 is 181031.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 17956 = 335^2 + 134^2 .

It is not a de Polignac number, because 130181 - 2¹⁴ = 113797 is a prime.

It is a super-2 number, since 2×130181² = 33894185522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1910 + ... + 1976.

It is an arithmetic number, because the mean of its divisors is an integer number (22785).

2¹³⁰¹⁸¹ is an apocalyptic number.

It is an amenable number.

130181 is a deficient number, since it is larger than the sum of its proper divisors (6529).

130181 is an frugal number, since it uses more digits than its factorization.

130181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 130181 is about 360.8060420780. The cubic root of 130181 is about 50.6814697820.

The spelling of 130181 in words is "one hundred thirty thousand, one hundred eighty-one".