13013540 has 24 divisors (see below), whose sum is σ = 27542592. Its totient is φ = 5164640.

The previous prime is 13013527. The next prime is 13013543. The reversal of 13013540 is 4531031.

It is not an unprimeable number, because it can be changed into a prime (13013543) 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, 137 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (1147608).

Almost surely, 2^13013540 is an apocalyptic number.

13013540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13013540 is an abundant number, since it is smaller than the sum of its proper divisors (14529052).

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

13013540 is a wasteful number, since it uses less digits than its factorization.

13013540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13013540 is about 3607.4284469688. The cubic root of 13013540 is about 235.2150739641.

Adding to 13013540 its reverse (4531031), we get a palindrome (17544571).

The spelling of 13013540 in words is "thirteen million, thirteen thousand, five hundred forty".