135366255 has 16 divisors (see below), whose sum is σ = 240651360. Its totient is φ = 72195264.

The previous prime is 135366227. The next prime is 135366307. The reversal of 135366255 is 552663531.

135366255 is a `hidden beast` number, since 13 + 536 + 62 + 55 = 666.

It is not a de Polignac number, because 135366255 - 2⁶ = 135366191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501222 + ... + 501491.

It is an arithmetic number, because the mean of its divisors is an integer number (15040710).

Almost surely, 2^135366255 is an apocalyptic number.

135366255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135366255 is a deficient number, since it is larger than the sum of its proper divisors (105285105).

135366255 is a wasteful number, since it uses less digits than its factorization.

135366255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002727 (or 1002721 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 135366255 is about 11634.7004688561. The cubic root of 135366255 is about 513.4562815734.

It can be divided in two parts, 13536 and 6255, that added together give a palindrome (19791).

The spelling of 135366255 in words is "one hundred thirty-five million, three hundred sixty-six thousand, two hundred fifty-five".