13531135469 has 2 divisors, whose sum is σ = 13531135470. Its totient is φ = 13531135468.

The previous prime is 13531135411. The next prime is 13531135477. The reversal of 13531135469 is 96453113531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9566796100 + 3964339369 = 97810^2 + 62963^2 .

It is an emirp because it is prime and its reverse (96453113531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13531135469 is a prime.

It is a super-2 number, since 2×13531135469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531135489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765567734 + 6765567735.

It is an arithmetic number, because the mean of its divisors is an integer number (6765567735).

Almost surely, 2^13531135469 is an apocalyptic number.

It is an amenable number.

13531135469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531135469 is an equidigital number, since it uses as much as digits as its factorization.

13531135469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 41.

The spelling of 13531135469 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, four hundred sixty-nine".