135318219 has 4 divisors (see below), whose sum is σ = 180424296. Its totient is φ = 90212144.

The previous prime is 135318173. The next prime is 135318221. The reversal of 135318219 is 912813531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135318219 - 2¹¹ = 135316171 is a prime.

It is a super-2 number, since 2×135318219² = 36622040786663922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135318219.

It is not an unprimeable number, because it can be changed into a prime (135318259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22553034 + ... + 22553039.

It is an arithmetic number, because the mean of its divisors is an integer number (45106074).

Almost surely, 2^135318219 is an apocalyptic number.

135318219 is a deficient number, since it is larger than the sum of its proper divisors (45106077).

135318219 is an equidigital number, since it uses as much as digits as its factorization.

135318219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45106076.

The product of its digits is 6480, while the sum is 33.

The square root of 135318219 is about 11632.6359437575. The cubic root of 135318219 is about 513.3955394434.

The spelling of 135318219 in words is "one hundred thirty-five million, three hundred eighteen thousand, two hundred nineteen".