135366555 has 16 divisors (see below), whose sum is σ = 218576160. Its totient is φ = 71532288.

The previous prime is 135366551. The next prime is 135366557. The reversal of 135366555 is 555663531.

It is not a de Polignac number, because 135366555 - 2² = 135366551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135366551) 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, 39762 + ... + 43031.

It is an arithmetic number, because the mean of its divisors is an integer number (13661010).

Almost surely, 2^135366555 is an apocalyptic number.

135366555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135366555 is a deficient number, since it is larger than the sum of its proper divisors (83209605).

135366555 is a wasteful number, since it uses less digits than its factorization.

135366555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82910.

The product of its digits is 202500, while the sum is 39.

The square root of 135366555 is about 11634.7133613166. The cubic root of 135366555 is about 513.4566608820.

The spelling of 135366555 in words is "one hundred thirty-five million, three hundred sixty-six thousand, five hundred fifty-five".