168135 has 16 divisors (see below), whose sum is σ = 293760. Its totient is φ = 81440.

The previous prime is 168127. The next prime is 168143. The reversal of 168135 is 531861.

It is an interprime number because it is at equal distance from previous prime (168127) and next prime (168143).

It is not a de Polignac number, because 168135 - 2³ = 168127 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, 345 + ... + 674.

It is an arithmetic number, because the mean of its divisors is an integer number (18360).

2¹⁶⁸¹³⁵ is an apocalyptic number.

168135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168135 is a deficient number, since it is larger than the sum of its proper divisors (125625).

168135 is a wasteful number, since it uses less digits than its factorization.

168135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 720, while the sum is 24.

The square root of 168135 is about 410.0426807053. The cubic root of 168135 is about 55.1932595214.

Adding to 168135 its reverse (531861), we get a palindrome (699996).

It can be divided in two parts, 168 and 135, that added together give a palindrome (303).

The spelling of 168135 in words is "one hundred sixty-eight thousand, one hundred thirty-five".