135518269 has 4 divisors (see below), whose sum is σ = 135557344. Its totient is φ = 135479196.

The previous prime is 135518261. The next prime is 135518291. The reversal of 135518269 is 962815531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135518269 - 2³ = 135518261 is a prime.

It is a super-2 number, since 2×135518269² = 36730402465512722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135518261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13767 + ... + 21460.

It is an arithmetic number, because the mean of its divisors is an integer number (33889336).

Almost surely, 2^135518269 is an apocalyptic number.

It is an amenable number.

135518269 is a deficient number, since it is larger than the sum of its proper divisors (39075).

135518269 is an equidigital number, since it uses as much as digits as its factorization.

135518269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39074.

The product of its digits is 64800, while the sum is 40.

The square root of 135518269 is about 11641.2314211169. The cubic root of 135518269 is about 513.6484105600.

The spelling of 135518269 in words is "one hundred thirty-five million, five hundred eighteen thousand, two hundred sixty-nine".