130917928 has 8 divisors (see below), whose sum is σ = 245471130. Its totient is φ = 65458960.

The previous prime is 130917907. The next prime is 130917959. The reversal of 130917928 is 829719031.

It can be written as a sum of positive squares in only one way, i.e., 109369764 + 21548164 = 10458^2 + 4642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8182363 + ... + 8182378.

Almost surely, 2^130917928 is an apocalyptic number.

It is an amenable number.

130917928 is a deficient number, since it is larger than the sum of its proper divisors (114553202).

130917928 is a wasteful number, since it uses less digits than its factorization.

130917928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16364747 (or 16364743 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 130917928 is about 11441.9372485607. The cubic root of 130917928 is about 507.7692237166.

The spelling of 130917928 in words is "one hundred thirty million, nine hundred seventeen thousand, nine hundred twenty-eight".