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135255 = 3571127
BaseRepresentation
bin100001000001010111
320212112110
4201001113
513312010
62522103
71102221
oct410127
9225473
10135255
119268a
1266333
1349743
1437411
152a120
hex21057

135255 has 16 divisors (see below), whose sum is σ = 221184. Its totient is φ = 70560.

The previous prime is 135241. The next prime is 135257. The reversal of 135255 is 552531.

It is not a de Polignac number, because 135255 - 28 = 134999 is a prime.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (13824).

2135255 is an apocalyptic number.

135255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135255 is a deficient number, since it is larger than the sum of its proper divisors (85929).

135255 is a wasteful number, since it uses less digits than its factorization.

135255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206.

The product of its digits is 750, while the sum is 21.

The square root of 135255 is about 367.7703087526. The cubic root of 135255 is about 51.3315576305.

Adding to 135255 its reverse (552531), we get a palindrome (687786).

It can be divided in two parts, 13525 and 5, that added together give a triangular number (13530 = T164).

The spelling of 135255 in words is "one hundred thirty-five thousand, two hundred fifty-five".

Divisors: 1 3 5 15 71 127 213 355 381 635 1065 1905 9017 27051 45085 135255