135819786 has 8 divisors (see below), whose sum is σ = 271639584. Its totient is φ = 45273260.

The previous prime is 135819767. The next prime is 135819791. The reversal of 135819786 is 687918531.

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

135819786 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11318310 + ... + 11318321.

It is an arithmetic number, because the mean of its divisors is an integer number (33954948).

Almost surely, 2^135819786 is an apocalyptic number.

135819786 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135819786 is a wasteful number, since it uses less digits than its factorization.

135819786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22636636.

The product of its digits is 362880, while the sum is 48.

The square root of 135819786 is about 11654.1746168487. The cubic root of 135819786 is about 514.0290702065.

The spelling of 135819786 in words is "one hundred thirty-five million, eight hundred nineteen thousand, seven hundred eighty-six".