130686005 has 8 divisors (see below), whose sum is σ = 157169112. Its totient is φ = 104318208.

The previous prime is 130686001. The next prime is 130686007. The reversal of 130686005 is 500686031.

It can be written as a sum of positive squares in 4 ways, for example, as 65254084 + 65431921 = 8078^2 + 8089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130686005 - 2² = 130686001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130686001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26312 + ... + 30881.

It is an arithmetic number, because the mean of its divisors is an integer number (19646139).

Almost surely, 2^130686005 is an apocalyptic number.

It is an amenable number.

130686005 is a deficient number, since it is larger than the sum of its proper divisors (26483107).

130686005 is an equidigital number, since it uses as much as digits as its factorization.

130686005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57655.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 130686005 is about 11431.7979775712. The cubic root of 130686005 is about 507.4692063142.

The spelling of 130686005 in words is "one hundred thirty million, six hundred eighty-six thousand, five".