130805608 has 8 divisors (see below), whose sum is σ = 245260530. Its totient is φ = 65402800.

The previous prime is 130805603. The next prime is 130805617. The reversal of 130805608 is 806508031.

It can be written as a sum of positive squares in only one way, i.e., 128187684 + 2617924 = 11322^2 + 1618^2 .

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

It is a super-2 number, since 2×130805608² = 34220214168499328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130805608.

It is not an unprimeable number, because it can be changed into a prime (130805603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8175343 + ... + 8175358.

Almost surely, 2^130805608 is an apocalyptic number.

It is an amenable number.

130805608 is a deficient number, since it is larger than the sum of its proper divisors (114454922).

130805608 is a wasteful number, since it uses less digits than its factorization.

130805608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16350707 (or 16350703 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 130805608 is about 11437.0279356133. The cubic root of 130805608 is about 507.6239699735.

The spelling of 130805608 in words is "one hundred thirty million, eight hundred five thousand, six hundred eight".