13540136 has 16 divisors (see below), whose sum is σ = 25928640. Its totient is φ = 6625840.

The previous prime is 13540117. The next prime is 13540139. The reversal of 13540136 is 63104531.

It is a happy number.

13540136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13540139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17630 + ... + 18381.

It is an arithmetic number, because the mean of its divisors is an integer number (1620540).

Almost surely, 2^13540136 is an apocalyptic number.

It is an amenable number.

13540136 is a deficient number, since it is larger than the sum of its proper divisors (12388504).

13540136 is a wasteful number, since it uses less digits than its factorization.

13540136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36064 (or 36060 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13540136 is about 3679.6923784469. The cubic root of 13540136 is about 238.3458944374.

Adding to 13540136 its reverse (63104531), we get a palindrome (76644667).

The spelling of 13540136 in words is "thirteen million, five hundred forty thousand, one hundred thirty-six".