135784605 has 32 divisors (see below), whose sum is σ = 239251968. Its totient is φ = 65211200.

The previous prime is 135784573. The next prime is 135784609. The reversal of 135784605 is 506487531.

135784605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135784605 - 2⁵ = 135784573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135784609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13810 + ... + 21500.

It is an arithmetic number, because the mean of its divisors is an integer number (7476624).

Almost surely, 2^135784605 is an apocalyptic number.

135784605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135784605 is a deficient number, since it is larger than the sum of its proper divisors (103467363).

135784605 is a wasteful number, since it uses less digits than its factorization.

135784605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 135784605 is about 11652.6651457939. The cubic root of 135784605 is about 513.9846838941.

The spelling of 135784605 in words is "one hundred thirty-five million, seven hundred eighty-four thousand, six hundred five".