130028 has 6 divisors (see below), whose sum is σ = 227556. Its totient is φ = 65012.

The previous prime is 130027. The next prime is 130043. The reversal of 130028 is 820031.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 129994 and 130021.

It is not an unprimeable number, because it can be changed into a prime (130021) 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 as a sum of consecutive naturals, namely, 16250 + ... + 16257.

It is an arithmetic number, because the mean of its divisors is an integer number (37926).

2¹³⁰⁰²⁸ is an apocalyptic number.

It is an amenable number.

130028 is a deficient number, since it is larger than the sum of its proper divisors (97528).

130028 is a wasteful number, since it uses less digits than its factorization.

130028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32511 (or 32509 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 130028 is about 360.5939544696. The cubic root of 130028 is about 50.6616069124.

Adding to 130028 its reverse (820031), we get a palindrome (950059).

The spelling of 130028 in words is "one hundred thirty thousand, twenty-eight".