305130532405 has 8 divisors (see below), whose sum is σ = 366231562200. Its totient is φ = 244054477056.

The previous prime is 305130532397. The next prime is 305130532409. The reversal of 305130532405 is 504235031503.

It can be written as a sum of positive squares in 4 ways, for example, as 62711178084 + 242419354321 = 250422^2 + 492361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 305130532405 - 2³ = 305130532397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305130532409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6216720 + ... + 6265609.

It is an arithmetic number, because the mean of its divisors is an integer number (45778945275).

Almost surely, 2^305130532405 is an apocalyptic number.

It is an amenable number.

305130532405 is a deficient number, since it is larger than the sum of its proper divisors (61101029795).

305130532405 is a wasteful number, since it uses less digits than its factorization.

305130532405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12487223.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 305130532405 its reverse (504235031503), we get a palindrome (809365563908).

The spelling of 305130532405 in words is "three hundred five billion, one hundred thirty million, five hundred thirty-two thousand, four hundred five".