135683219 has 8 divisors (see below), whose sum is σ = 158366208. Its totient is φ = 113825160.

The previous prime is 135683213. The next prime is 135683221. The reversal of 135683219 is 912386531.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135683219 is a prime.

It is a super-2 number, since 2×135683219² = 36819871836403922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135683213) 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, 205877 + ... + 206534.

It is an arithmetic number, because the mean of its divisors is an integer number (19795776).

Almost surely, 2^135683219 is an apocalyptic number.

135683219 is a deficient number, since it is larger than the sum of its proper divisors (22682989).

135683219 is an equidigital number, since it uses as much as digits as its factorization.

135683219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412465.

The product of its digits is 38880, while the sum is 38.

The square root of 135683219 is about 11648.3139981716. The cubic root of 135683219 is about 513.8567267609.

The spelling of 135683219 in words is "one hundred thirty-five million, six hundred eighty-three thousand, two hundred nineteen".