13805507 has 2 divisors, whose sum is σ = 13805508. Its totient is φ = 13805506.

The previous prime is 13805503. The next prime is 13805521. The reversal of 13805507 is 70550831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13805507 - 2² = 13805503 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13805507.

It is not a weakly prime, because it can be changed into another prime (13805501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6902753 + 6902754.

It is an arithmetic number, because the mean of its divisors is an integer number (6902754).

Almost surely, 2^13805507 is an apocalyptic number.

13805507 is a deficient number, since it is larger than the sum of its proper divisors (1).

13805507 is an equidigital number, since it uses as much as digits as its factorization.

13805507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 13805507 is about 3715.5762675526. The cubic root of 13805507 is about 239.8929325669.

The spelling of 13805507 in words is "thirteen million, eight hundred five thousand, five hundred seven".