130828 has 6 divisors (see below), whose sum is σ = 228956. Its totient is φ = 65412.

The previous prime is 130817. The next prime is 130829. The reversal of 130828 is 828031.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 130799 and 130808.

It is not an unprimeable number, because it can be changed into a prime (130829) by changing a digit.

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 as a sum of consecutive naturals, namely, 16350 + ... + 16357.

2¹³⁰⁸²⁸ is an apocalyptic number.

It is an amenable number.

130828 is a deficient number, since it is larger than the sum of its proper divisors (98128).

130828 is a wasteful number, since it uses less digits than its factorization.

130828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32711 (or 32709 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 130828 is about 361.7015344175. The cubic root of 130828 is about 50.7652934245.

Adding to 130828 its reverse (828031), we get a palindrome (958859).

The spelling of 130828 in words is "one hundred thirty thousand, eight hundred twenty-eight".