135169 has 8 divisors (see below), whose sum is σ = 144000. Its totient is φ = 126672.

The previous prime is 135151. The next prime is 135173. The reversal of 135169 is 961531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135169 - 2¹¹ = 133121 is a prime.

It is a super-2 number, since 2×135169² = 36541317122, which contains 22 as substring.

It is a Duffinian number.

135169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (135119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (18000).

It is a Proth number, since it is equal to 33 ⋅ 2¹² + 1 and 33 < 2¹².

2¹³⁵¹⁶⁹ is an apocalyptic number.

It is an amenable number.

135169 is a deficient number, since it is larger than the sum of its proper divisors (8831).

135169 is an equidigital number, since it uses as much as digits as its factorization.

135169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167.

The product of its digits is 810, while the sum is 25.

The square root of 135169 is about 367.6533693576. The cubic root of 135169 is about 51.3206758395.

The spelling of 135169 in words is "one hundred thirty-five thousand, one hundred sixty-nine".