135405606 has 16 divisors (see below), whose sum is σ = 309498624. Its totient is φ = 38687304.

The previous prime is 135405601. The next prime is 135405617. The reversal of 135405606 is 606504531.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135405601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611930 + ... + 1612013.

It is an arithmetic number, because the mean of its divisors is an integer number (19343664).

Almost surely, 2^135405606 is an apocalyptic number.

135405606 is an abundant number, since it is smaller than the sum of its proper divisors (174093018).

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

135405606 is a wasteful number, since it uses less digits than its factorization.

135405606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223955.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 135405606 is about 11636.3914509611. The cubic root of 135405606 is about 513.5060307042.

The spelling of 135405606 in words is "one hundred thirty-five million, four hundred five thousand, six hundred six".