13504385 has 8 divisors (see below), whose sum is σ = 16258920. Its totient is φ = 10767744.

The previous prime is 13504331. The next prime is 13504399. The reversal of 13504385 is 58340531.

It can be written as a sum of positive squares in 4 ways, for example, as 167281 + 13337104 = 409^2 + 3652^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13504385 - 2¹⁴ = 13488001 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2750 + ... + 5879.

It is an arithmetic number, because the mean of its divisors is an integer number (2032365).

Almost surely, 2^13504385 is an apocalyptic number.

It is an amenable number.

13504385 is a deficient number, since it is larger than the sum of its proper divisors (2754535).

13504385 is an equidigital number, since it uses as much as digits as its factorization.

13504385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 13504385 is about 3674.8312886444. The cubic root of 13504385 is about 238.1359355734.

The spelling of 13504385 in words is "thirteen million, five hundred four thousand, three hundred eighty-five".