130173 has 4 divisors (see below), whose sum is σ = 173568. Its totient is φ = 86780.

The previous prime is 130171. The next prime is 130183. The reversal of 130173 is 371031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 371031 = 3 ⋅123677.

It is a cyclic number.

It is not a de Polignac number, because 130173 - 2¹ = 130171 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21693 + ... + 21698.

It is an arithmetic number, because the mean of its divisors is an integer number (43392).

2¹³⁰¹⁷³ is an apocalyptic number.

It is an amenable number.

130173 is a deficient number, since it is larger than the sum of its proper divisors (43395).

130173 is an equidigital number, since it uses as much as digits as its factorization.

130173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43394.

The product of its (nonzero) digits is 63, while the sum is 15.

The square root of 130173 is about 360.7949556188. The cubic root of 130173 is about 50.6804315863.

It can be divided in two parts, 130 and 173, that added together give a palindrome (303).

The spelling of 130173 in words is "one hundred thirty thousand, one hundred seventy-three".