135908775 has 36 divisors (see below), whose sum is σ = 244953072. Its totient is φ = 72030720.

The previous prime is 135908749. The next prime is 135908791. The reversal of 135908775 is 577809531.

135908775 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 135908775 - 2¹² = 135904679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 135908775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35767 + ... + 39383.

It is an arithmetic number, because the mean of its divisors is an integer number (6804252).

Almost surely, 2^135908775 is an apocalyptic number.

135908775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135908775 is a deficient number, since it is larger than the sum of its proper divisors (109044297).

135908775 is a wasteful number, since it uses less digits than its factorization.

135908775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800 (or 3792 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 135908775 is about 11657.9918939756. The cubic root of 135908775 is about 514.1413094899.

The spelling of 135908775 in words is "one hundred thirty-five million, nine hundred eight thousand, seven hundred seventy-five".