130660813 has 4 divisors (see below), whose sum is σ = 131317600. Its totient is φ = 130004028.

The previous prime is 130660763. The next prime is 130660837. The reversal of 130660813 is 318066031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318066031 = 487 ⋅653113.

It is a cyclic number.

It is not a de Polignac number, because 130660813 - 2¹⁷ = 130529741 is a prime.

It is a super-4 number, since 4×130660813⁴ (a number of 34 digits) contains 4444 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 (130660213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328095 + ... + 328492.

It is an arithmetic number, because the mean of its divisors is an integer number (32829400).

Almost surely, 2^130660813 is an apocalyptic number.

It is an amenable number.

130660813 is a deficient number, since it is larger than the sum of its proper divisors (656787).

130660813 is an equidigital number, since it uses as much as digits as its factorization.

130660813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656786.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 130660813 is about 11430.6960855409. The cubic root of 130660813 is about 507.4365963808.

The spelling of 130660813 in words is "one hundred thirty million, six hundred sixty thousand, eight hundred thirteen".