13541540 has 12 divisors (see below), whose sum is σ = 28437276. Its totient is φ = 5416608.

The previous prime is 13541497. The next prime is 13541569. The reversal of 13541540 is 4514531.

It can be written as a sum of positive squares in 2 ways, for example, as 4153444 + 9388096 = 2038^2 + 3064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338519 + ... + 338558.

It is an arithmetic number, because the mean of its divisors is an integer number (2369773).

Almost surely, 2^13541540 is an apocalyptic number.

13541540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13541540 is an abundant number, since it is smaller than the sum of its proper divisors (14895736).

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

13541540 is a wasteful number, since it uses less digits than its factorization.

13541540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677086 (or 677084 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 13541540 is about 3679.8831503188. The cubic root of 13541540 is about 238.3541323180.

The spelling of 13541540 in words is "thirteen million, five hundred forty-one thousand, five hundred forty".