13509496 has 96 divisors (see below), whose sum is σ = 34760880. Its totient is φ = 4838400.

The previous prime is 13509479. The next prime is 13509497. The reversal of 13509496 is 69490531.

13509496 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13509496 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13509497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55936 + ... + 56176.

Almost surely, 2^13509496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13509496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17380440).

13509496 is an abundant number, since it is smaller than the sum of its proper divisors (21251384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13509496 is a wasteful number, since it uses less digits than its factorization.

13509496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 13509496 is about 3675.5266289336. The cubic root of 13509496 is about 238.1659741930.

The spelling of 13509496 in words is "thirteen million, five hundred nine thousand, four hundred ninety-six".