135906855 has 16 divisors (see below), whose sum is σ = 248515584. Its totient is φ = 62128800.

The previous prime is 135906853. The next prime is 135906863. The reversal of 135906855 is 558609531.

It is not a de Polignac number, because 135906855 - 2¹ = 135906853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135906853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647071 + ... + 647280.

It is an arithmetic number, because the mean of its divisors is an integer number (15532224).

Almost surely, 2^135906855 is an apocalyptic number.

135906855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135906855 is a deficient number, since it is larger than the sum of its proper divisors (112608729).

135906855 is a wasteful number, since it uses less digits than its factorization.

135906855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294366.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 135906855 is about 11657.9095467412. The cubic root of 135906855 is about 514.1388883659.

The spelling of 135906855 in words is "one hundred thirty-five million, nine hundred six thousand, eight hundred fifty-five".