8012405305 has 8 divisors (see below), whose sum is σ = 9615735432. Its totient is φ = 6409358208.

The previous prime is 8012405299. The next prime is 8012405311. The reversal of 8012405305 is 5035042108.

It is an interprime number because it is at equal distance from previous prime (8012405299) and next prime (8012405311).

It can be written as a sum of positive squares in 4 ways, for example, as 106172416 + 7906232889 = 10304^2 + 88917^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8012405305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2484 + ... + 126613.

It is an arithmetic number, because the mean of its divisors is an integer number (1201966929).

Almost surely, 2^8012405305 is an apocalyptic number.

It is an amenable number.

8012405305 is a deficient number, since it is larger than the sum of its proper divisors (1603330127).

8012405305 is a wasteful number, since it uses less digits than its factorization.

8012405305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141515.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 8012405305 is about 89512.0400002145. The cubic root of 8012405305 is about 2001.0332415307.

The spelling of 8012405305 in words is "eight billion, twelve million, four hundred five thousand, three hundred five".