13530647 has 18 divisors (see below), whose sum is σ = 15552072. Its totient is φ = 11744304.

The previous prime is 13530611. The next prime is 13530653. The reversal of 13530647 is 74603531.

13530647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13530647 - 2¹⁰ = 13529623 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 (13530347) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 229304 + ... + 229362.

It is an arithmetic number, because the mean of its divisors is an integer number (864004).

Almost surely, 2^13530647 is an apocalyptic number.

13530647 is a deficient number, since it is larger than the sum of its proper divisors (2021425).

13530647 is an equidigital number, since it uses as much as digits as its factorization.

13530647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 13530647 is about 3678.4027783809. The cubic root of 13530647 is about 238.2902033984.

The spelling of 13530647 in words is "thirteen million, five hundred thirty thousand, six hundred forty-seven".