13540035131 has 16 divisors (see below), whose sum is σ = 15601555200. Its totient is φ = 11510557920.

The previous prime is 13540035121. The next prime is 13540035193. The reversal of 13540035131 is 13153004531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13540035131 is a prime.

It is a super-2 number, since 2×13540035131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13540035131.

It is not an unprimeable number, because it can be changed into a prime (13540035121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711320 + ... + 730106.

It is an arithmetic number, because the mean of its divisors is an integer number (975097200).

Almost surely, 2^13540035131 is an apocalyptic number.

13540035131 is a deficient number, since it is larger than the sum of its proper divisors (2061520069).

13540035131 is a wasteful number, since it uses less digits than its factorization.

13540035131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19634.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 13540035131 its reverse (13153004531), we get a palindrome (26693039662).

The spelling of 13540035131 in words is "thirteen billion, five hundred forty million, thirty-five thousand, one hundred thirty-one".