1305641544225 has 24 divisors (see below), whose sum is σ = 2160646709760. Its totient is φ = 695701504320.

The previous prime is 1305641544223. The next prime is 1305641544253. The reversal of 1305641544225 is 5224451465031.

It is not a de Polignac number, because 1305641544225 - 2¹ = 1305641544223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1305641544223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7926090 + ... + 8089139.

It is an arithmetic number, because the mean of its divisors is an integer number (90026946240).

Almost surely, 2^{1305641544225} is an apocalyptic number.

1305641544225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1305641544225 is a deficient number, since it is larger than the sum of its proper divisors (855005165535).

1305641544225 is a wasteful number, since it uses less digits than its factorization.

1305641544225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16016329 (or 16016324 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 1305641544225 in words is "one trillion, three hundred five billion, six hundred forty-one million, five hundred forty-four thousand, two hundred twenty-five".