135419 has 4 divisors (see below), whose sum is σ = 136320. Its totient is φ = 134520.

The previous prime is 135409. The next prime is 135427. The reversal of 135419 is 914531.

It is a happy number.

135419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 914531 = 31 ⋅29501.

It is a cyclic number.

It is not a de Polignac number, because 135419 - 2⁴ = 135403 is a prime.

It is a super-2 number, since 2×135419² = 36676611122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135394 and 135403.

It is not an unprimeable number, because it can be changed into a prime (135409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (34080).

2¹³⁵⁴¹⁹ is an apocalyptic number.

135419 is a deficient number, since it is larger than the sum of its proper divisors (901).

135419 is an equidigital number, since it uses as much as digits as its factorization.

135419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900.

The product of its digits is 540, while the sum is 23.

The square root of 135419 is about 367.9932064590. The cubic root of 135419 is about 51.3522961744.

It can be divided in two parts, 135 and 419, that multiplied together give a palindrome (56565).

The spelling of 135419 in words is "one hundred thirty-five thousand, four hundred nineteen".