130217128 has 16 divisors (see below), whose sum is σ = 244661760. Its totient is φ = 64974000.

The previous prime is 130217117. The next prime is 130217147. The reversal of 130217128 is 821712031.

It is a happy number.

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, 12648 + ... + 20503.

It is an arithmetic number, because the mean of its divisors is an integer number (15291360).

Almost surely, 2^130217128 is an apocalyptic number.

It is an amenable number.

130217128 is a deficient number, since it is larger than the sum of its proper divisors (114444632).

130217128 is a wasteful number, since it uses less digits than its factorization.

130217128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33648 (or 33644 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 130217128 is about 11411.2719711696. The cubic root of 130217128 is about 506.8615774412.

Adding to 130217128 its reverse (821712031), we get a palindrome (951929159).

The spelling of 130217128 in words is "one hundred thirty million, two hundred seventeen thousand, one hundred twenty-eight".