13541520 has 80 divisors (see below), whose sum is σ = 44461440. Its totient is φ = 3397632.

The previous prime is 13541497. The next prime is 13541569. The reversal of 13541520 is 2514531.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2421 + ... + 5739.

It is an arithmetic number, because the mean of its divisors is an integer number (555768).

Almost surely, 2^13541520 is an apocalyptic number.

13541520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13541520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22230720).

13541520 is an abundant number, since it is smaller than the sum of its proper divisors (30919920).

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

13541520 is a wasteful number, since it uses less digits than its factorization.

13541520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352 (or 3346 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13541520 is about 3679.8804328402. The cubic root of 13541520 is about 238.3540149733.

The spelling of 13541520 in words is "thirteen million, five hundred forty-one thousand, five hundred twenty".