13524609 has 8 divisors (see below), whose sum is σ = 20608960. Its totient is φ = 7728336.

The previous prime is 13524559. The next prime is 13524653. The reversal of 13524609 is 90642531.

13524609 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13524609 - 2⁷ = 13524481 is a prime.

It is a Duffinian number.

13524609 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13524509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321994 + ... + 322035.

It is an arithmetic number, because the mean of its divisors is an integer number (2576120).

Almost surely, 2^13524609 is an apocalyptic number.

It is an amenable number.

13524609 is a deficient number, since it is larger than the sum of its proper divisors (7084351).

13524609 is an equidigital number, since it uses as much as digits as its factorization.

13524609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644039.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13524609 is about 3677.5819501406. The cubic root of 13524609 is about 238.2547527576.

The spelling of 13524609 in words is "thirteen million, five hundred twenty-four thousand, six hundred nine".