1305503145425 has 12 divisors (see below), whose sum is σ = 1618853053440. Its totient is φ = 1044383707920.

The previous prime is 1305503145377. The next prime is 1305503145431. The reversal of 1305503145425 is 5245413055031.

It is not a de Polignac number, because 1305503145425 - 2¹⁴ = 1305503129041 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1040996 + ... + 1922154.

It is an arithmetic number, because the mean of its divisors is an integer number (134904421120).

Almost surely, 2^{1305503145425} is an apocalyptic number.

It is an amenable number.

1305503145425 is a deficient number, since it is larger than the sum of its proper divisors (313349908015).

1305503145425 is an equidigital number, since it uses as much as digits as its factorization.

1305503145425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940432 (or 940427 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 1305503145425 in words is "one trillion, three hundred five billion, five hundred three million, one hundred forty-five thousand, four hundred twenty-five".