13245240805 has 16 divisors (see below), whose sum is σ = 16612314624. Its totient is φ = 10119007360.

The previous prime is 13245240763. The next prime is 13245240809. The reversal of 13245240805 is 50804254231.

It is not a de Polignac number, because 13245240805 - 2⁷ = 13245240677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245240809) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22381 + ... + 164290.

It is an arithmetic number, because the mean of its divisors is an integer number (1038269664).

Almost surely, 2^13245240805 is an apocalyptic number.

It is an amenable number.

13245240805 is a deficient number, since it is larger than the sum of its proper divisors (3367073819).

13245240805 is a wasteful number, since it uses less digits than its factorization.

13245240805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187316.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 13245240805 in words is "thirteen billion, two hundred forty-five million, two hundred forty thousand, eight hundred five".