13540004531 has 2 divisors, whose sum is σ = 13540004532. Its totient is φ = 13540004530.

The previous prime is 13540004521. The next prime is 13540004563.

13540004531 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13540004531 is a prime.

It is a super-2 number, since 2×13540004531² (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 13540004531.

It is not a weakly prime, because it can be changed into another prime (13540004521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6770002265 + 6770002266.

It is an arithmetic number, because the mean of its divisors is an integer number (6770002266).

Almost surely, 2^13540004531 is an apocalyptic number.

13540004531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13540004531 is an equidigital number, since it uses as much as digits as its factorization.

13540004531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 1354000 and 4531, that added together give a palindrome (1358531).

The spelling of 13540004531 in words is "thirteen billion, five hundred forty million, four thousand, five hundred thirty-one".