130544305 has 4 divisors (see below), whose sum is σ = 156653172. Its totient is φ = 104435440.

The previous prime is 130544303. The next prime is 130544311. The reversal of 130544305 is 503445031.

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 28291761 + 102252544 = 5319^2 + 10112^2 .

It is not a de Polignac number, because 130544305 - 2¹ = 130544303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130544305.

It is not an unprimeable number, because it can be changed into a prime (130544303) 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, 13054426 + ... + 13054435.

It is an arithmetic number, because the mean of its divisors is an integer number (39163293).

Almost surely, 2^130544305 is an apocalyptic number.

It is an amenable number.

130544305 is a deficient number, since it is larger than the sum of its proper divisors (26108867).

130544305 is an equidigital number, since it uses as much as digits as its factorization.

130544305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26108866.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 130544305 is about 11425.5986714045. The cubic root of 130544305 is about 507.2857273672.

Adding to 130544305 its reverse (503445031), we get a palindrome (633989336).

The spelling of 130544305 in words is "one hundred thirty million, five hundred forty-four thousand, three hundred five".