13534431149 has 2 divisors, whose sum is σ = 13534431150. Its totient is φ = 13534431148.

The previous prime is 13534431091. The next prime is 13534431193. The reversal of 13534431149 is 94113443531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13512435049 + 21996100 = 116243^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 13534431149 - 2¹⁶ = 13534365613 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13534431749) 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, 6767215574 + 6767215575.

It is an arithmetic number, because the mean of its divisors is an integer number (6767215575).

Almost surely, 2^13534431149 is an apocalyptic number.

It is an amenable number.

13534431149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13534431149 is an equidigital number, since it uses as much as digits as its factorization.

13534431149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The spelling of 13534431149 in words is "thirteen billion, five hundred thirty-four million, four hundred thirty-one thousand, one hundred forty-nine".