13518472169 has 2 divisors, whose sum is σ = 13518472170. Its totient is φ = 13518472168.

The previous prime is 13518472141. The next prime is 13518472183. The reversal of 13518472169 is 96127481531.

13518472169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11118648025 + 2399824144 = 105445^2 + 48988^2 .

It is a cyclic number.

It is not a de Polignac number, because 13518472169 - 2¹⁶ = 13518406633 is a prime.

It is a super-2 number, since 2×13518472169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13518472109) by changing a digit.

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 as a sum of consecutive naturals, namely, 6759236084 + 6759236085.

It is an arithmetic number, because the mean of its divisors is an integer number (6759236085).

Almost surely, 2^13518472169 is an apocalyptic number.

It is an amenable number.

13518472169 is a deficient number, since it is larger than the sum of its proper divisors (1).

13518472169 is an equidigital number, since it uses as much as digits as its factorization.

13518472169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The spelling of 13518472169 in words is "thirteen billion, five hundred eighteen million, four hundred seventy-two thousand, one hundred sixty-nine".