12245541305 has 8 divisors (see below), whose sum is σ = 15201361800. Its totient is φ = 9458624896.

The previous prime is 12245541263. The next prime is 12245541311. The reversal of 12245541305 is 50314554221.

12245541305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 221980201 + 12023561104 = 14899^2 + 109652^2 .

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 12245541305 - 2¹² = 12245537209 is a prime.

It is a super-2 number, since 2×12245541305² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42225860 + ... + 42226149.

It is an arithmetic number, because the mean of its divisors is an integer number (1900170225).

Almost surely, 2^12245541305 is an apocalyptic number.

It is an amenable number.

12245541305 is a deficient number, since it is larger than the sum of its proper divisors (2955820495).

12245541305 is an equidigital number, since it uses as much as digits as its factorization.

12245541305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84452043.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 12245541305 in words is "twelve billion, two hundred forty-five million, five hundred forty-one thousand, three hundred five".