135519 has 8 divisors (see below), whose sum is σ = 182400. Its totient is φ = 89496.

The previous prime is 135511. The next prime is 135533. The reversal of 135519 is 915531.

135519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135519 - 2³ = 135511 is a prime.

It is a super-2 number, since 2×135519² = 36730798722, which contains 22 as substring.

135519 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (22800).

2¹³⁵⁵¹⁹ is an apocalyptic number.

135519 is a deficient number, since it is larger than the sum of its proper divisors (46881).

135519 is a wasteful number, since it uses less digits than its factorization.

135519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its digits is 675, while the sum is 24.

The square root of 135519 is about 368.1290534582. The cubic root of 135519 is about 51.3649334116.

The spelling of 135519 in words is "one hundred thirty-five thousand, five hundred nineteen".