130181228 has 12 divisors (see below), whose sum is σ = 228258072. Its totient is φ = 64964640.

The previous prime is 130181221. The next prime is 130181231. The reversal of 130181228 is 822181031.

It is a junction number, because it is equal to n+sod(n) for n = 130181197 and 130181206.

It is not an unprimeable number, because it can be changed into a prime (130181221) 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, 29150 + ... + 33317.

It is an arithmetic number, because the mean of its divisors is an integer number (19021506).

Almost surely, 2^130181228 is an apocalyptic number.

It is an amenable number.

130181228 is a deficient number, since it is larger than the sum of its proper divisors (98076844).

130181228 is a wasteful number, since it uses less digits than its factorization.

130181228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62992 (or 62990 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 130181228 is about 11409.6988566745. The cubic root of 130181228 is about 506.8149936997.

The spelling of 130181228 in words is "one hundred thirty million, one hundred eighty-one thousand, two hundred twenty-eight".