130105028 has 12 divisors (see below), whose sum is σ = 228075792. Its totient is φ = 64940520.

The previous prime is 130105007. The next prime is 130105037. The reversal of 130105028 is 820501031.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25358 + ... + 30053.

It is an arithmetic number, because the mean of its divisors is an integer number (19006316).

Almost surely, 2^130105028 is an apocalyptic number.

It is an amenable number.

130105028 is a deficient number, since it is larger than the sum of its proper divisors (97970764).

130105028 is a wasteful number, since it uses less digits than its factorization.

130105028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56002 (or 56000 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 130105028 is about 11406.3591035878. The cubic root of 130105028 is about 506.7160884001.

Adding to 130105028 its reverse (820501031), we get a palindrome (950606059).

The spelling of 130105028 in words is "one hundred thirty million, one hundred five thousand, twenty-eight".