13540031015 has 16 divisors (see below), whose sum is σ = 18571107648. Its totient is φ = 9283631616.

The previous prime is 13540030997. The next prime is 13540031027. The reversal of 13540031015 is 51013004531.

13540031015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13540031015 - 2⁸ = 13540030759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557669 + ... + 581441.

It is an arithmetic number, because the mean of its divisors is an integer number (1160694228).

Almost surely, 2^13540031015 is an apocalyptic number.

13540031015 is a deficient number, since it is larger than the sum of its proper divisors (5031076633).

13540031015 is a wasteful number, since it uses less digits than its factorization.

13540031015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40058.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 13540031015 its reverse (51013004531), we get a palindrome (64553035546).

The spelling of 13540031015 in words is "thirteen billion, five hundred forty million, thirty-one thousand, fifteen".