135865368 has 24 divisors (see below), whose sum is σ = 367968900. Its totient is φ = 45288432.

The previous prime is 135865357. The next prime is 135865381. The reversal of 135865368 is 863568531.

135865368 is a `hidden beast` number, since 1 + 3 + 586 + 5 + 3 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 943438 + ... + 943581.

Almost surely, 2^135865368 is an apocalyptic number.

135865368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

135865368 is an abundant number, since it is smaller than the sum of its proper divisors (232103532).

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

135865368 is a wasteful number, since it uses less digits than its factorization.

135865368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887031 (or 1887024 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 135865368 is about 11656.1300610451. The cubic root of 135865368 is about 514.0865676034.

The spelling of 135865368 in words is "one hundred thirty-five million, eight hundred sixty-five thousand, three hundred sixty-eight".