13505959 has 4 divisors (see below), whose sum is σ = 13513360. Its totient is φ = 13498560.

The previous prime is 13505923. The next prime is 13505983. The reversal of 13505959 is 95950531.

13505959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13505959 - 2¹⁵ = 13473191 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 (13505059) 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 in 3 ways as a sum of consecutive naturals, for example, 1207 + ... + 5335.

It is an arithmetic number, because the mean of its divisors is an integer number (3378340).

Almost surely, 2^13505959 is an apocalyptic number.

13505959 is a deficient number, since it is larger than the sum of its proper divisors (7401).

13505959 is an equidigital number, since it uses as much as digits as its factorization.

13505959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 13505959 is about 3675.0454418959. The cubic root of 13505959 is about 238.1451871708.

The spelling of 13505959 in words is "thirteen million, five hundred five thousand, nine hundred fifty-nine".