135501 has 12 divisors (see below), whose sum is σ = 190656. Its totient is φ = 85560.

The previous prime is 135497. The next prime is 135511. The reversal of 135501 is 105531.

It is not a de Polignac number, because 135501 - 2² = 135497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135511) 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 11 ways as a sum of consecutive naturals, for example, 2860 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (15888).

2¹³⁵⁵⁰¹ is an apocalyptic number.

It is an amenable number.

135501 is a deficient number, since it is larger than the sum of its proper divisors (55155).

135501 is an equidigital number, since it uses as much as digits as its factorization.

135501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 135501 is about 368.1046046982. The cubic root of 135501 is about 51.3626591678.

It can be divided in two parts, 135 and 501, that added together give a palindrome (636).

The spelling of 135501 in words is "one hundred thirty-five thousand, five hundred one".