1304245145205 has 12 divisors (see below), whose sum is σ = 2260691585100. Its totient is φ = 695597410752.

The previous prime is 1304245145173. The next prime is 1304245145207. The reversal of 1304245145205 is 5025415424031.

1304245145205 is a `hidden beast` number, since 1 + 304 + 2 + 4 + 5 + 145 + 205 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 712567274769 + 591677870436 = 844137^2 + 769206^2 .

It is not a de Polignac number, because 1304245145205 - 2⁵ = 1304245145173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304245145205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304245145207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14491612680 + ... + 14491612769.

It is an arithmetic number, because the mean of its divisors is an integer number (188390965425).

Almost surely, 2^{1304245145205} is an apocalyptic number.

1304245145205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304245145205 is a deficient number, since it is larger than the sum of its proper divisors (956446439895).

1304245145205 is a wasteful number, since it uses less digits than its factorization.

1304245145205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28983225460 (or 28983225457 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1304245145205 in words is "one trillion, three hundred four billion, two hundred forty-five million, one hundred forty-five thousand, two hundred five".