13530385 has 32 divisors (see below), whose sum is σ = 19440000. Its totient is φ = 8924160.

The previous prime is 13530379. The next prime is 13530397. The reversal of 13530385 is 58303531.

13530385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13530385 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26866 + ... + 27364.

It is an arithmetic number, because the mean of its divisors is an integer number (607500).

Almost surely, 2^13530385 is an apocalyptic number.

It is an amenable number.

13530385 is a deficient number, since it is larger than the sum of its proper divisors (5909615).

13530385 is a wasteful number, since it uses less digits than its factorization.

13530385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 13530385 is about 3678.3671649252. The cubic root of 13530385 is about 238.2886653484.

The spelling of 13530385 in words is "thirteen million, five hundred thirty thousand, three hundred eighty-five".