135001 has 4 divisors (see below), whose sum is σ = 136192. Its totient is φ = 133812.

The previous prime is 134999. The next prime is 135007. The reversal of 135001 is 100531.

135001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100531 = 229 ⋅439.

It is a cyclic number.

It is not a de Polignac number, because 135001 - 2¹ = 134999 is a prime.

It is a Duffinian number.

135001 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (34048).

2¹³⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

135001 is a deficient number, since it is larger than the sum of its proper divisors (1191).

135001 is a wasteful number, since it uses less digits than its factorization.

135001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 135001 is about 367.4248222426. The cubic root of 135001 is about 51.2994050649.

Adding to 135001 its reverse (100531), we get a palindrome (235532).

The spelling of 135001 in words is "one hundred thirty-five thousand, one".