130020005 has 4 divisors (see below), whose sum is σ = 156024012. Its totient is φ = 104016000.

The previous prime is 130019977. The next prime is 130020013. The reversal of 130020005 is 500020031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82919236 + 47100769 = 9106^2 + 6863^2 .

It is not a de Polignac number, because 130020005 - 2¹⁶ = 129954469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13001996 + ... + 13002005.

It is an arithmetic number, because the mean of its divisors is an integer number (39006003).

Almost surely, 2^130020005 is an apocalyptic number.

It is an amenable number.

130020005 is a deficient number, since it is larger than the sum of its proper divisors (26004007).

130020005 is an equidigital number, since it uses as much as digits as its factorization.

130020005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26004006.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 130020005 is about 11402.6314945279. The cubic root of 130020005 is about 506.6056855182.

Adding to 130020005 its reverse (500020031), we get a palindrome (630040036).

The spelling of 130020005 in words is "one hundred thirty million, twenty thousand, five".