130405013 has 4 divisors (see below), whose sum is σ = 130890060. Its totient is φ = 129919968.

The previous prime is 130405001. The next prime is 130405019. The reversal of 130405013 is 310504031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310504031 = 17 ⋅18264943.

It can be written as a sum of positive squares in 2 ways, for example, as 78464164 + 51940849 = 8858^2 + 7207^2 .

It is a cyclic number.

It is not a de Polignac number, because 130405013 - 2¹⁶ = 130339477 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 130404982 and 130405000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130405019) 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, 242120 + ... + 242657.

It is an arithmetic number, because the mean of its divisors is an integer number (32722515).

Almost surely, 2^130405013 is an apocalyptic number.

It is an amenable number.

130405013 is a deficient number, since it is larger than the sum of its proper divisors (485047).

130405013 is an equidigital number, since it uses as much as digits as its factorization.

130405013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485046.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130405013 is about 11419.5014339506. The cubic root of 130405013 is about 507.1052369445.

Adding to 130405013 its reverse (310504031), we get a palindrome (440909044).

The spelling of 130405013 in words is "one hundred thirty million, four hundred five thousand, thirteen".