135103 has 4 divisors (see below), whose sum is σ = 136080. Its totient is φ = 134128.

The previous prime is 135101. The next prime is 135119. The reversal of 135103 is 301531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 135103 - 2¹ = 135101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135101) 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, 238 + ... + 571.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2¹³⁵¹⁰³ is an apocalyptic number.

135103 is a deficient number, since it is larger than the sum of its proper divisors (977).

135103 is an equidigital number, since it uses as much as digits as its factorization.

135103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 135103 is about 367.5635999388. The cubic root of 135103 is about 51.3123215669.

Adding to 135103 its reverse (301531), we get a palindrome (436634).

The spelling of 135103 in words is "one hundred thirty-five thousand, one hundred three".