130056517 has 4 divisors (see below), whose sum is σ = 133571596. Its totient is φ = 126541440.

The previous prime is 130056491. The next prime is 130056523. The reversal of 130056517 is 715650031.

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 123343236 + 6713281 = 11106^2 + 2591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130056517 is a prime.

It is a super-2 number, since 2×130056517² = 33829395228342578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130056557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757484 + ... + 1757557.

It is an arithmetic number, because the mean of its divisors is an integer number (33392899).

Almost surely, 2^130056517 is an apocalyptic number.

It is an amenable number.

130056517 is a deficient number, since it is larger than the sum of its proper divisors (3515079).

130056517 is an equidigital number, since it uses as much as digits as its factorization.

130056517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515078.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 130056517 is about 11404.2324160813. The cubic root of 130056517 is about 506.6531024666.

The spelling of 130056517 in words is "one hundred thirty million, fifty-six thousand, five hundred seventeen".