135205074 has 48 divisors (see below), whose sum is σ = 303713280. Its totient is φ = 43424640.

The previous prime is 135205069. The next prime is 135205111. The reversal of 135205074 is 470502531.

It is a happy number.

135205074 is a `hidden beast` number, since 135 + 20 + 507 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187687 + ... + 188405.

It is an arithmetic number, because the mean of its divisors is an integer number (6327360).

Almost surely, 2^135205074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135205074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151856640).

135205074 is an abundant number, since it is smaller than the sum of its proper divisors (168508206).

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

135205074 is a wasteful number, since it uses less digits than its factorization.

135205074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 135205074 is about 11627.7716695848. The cubic root of 135205074 is about 513.2524093308.

It can be divided in two parts, 135 and 205074, that added together give a square (205209 = 453²).

The spelling of 135205074 in words is "one hundred thirty-five million, two hundred five thousand, seventy-four".