133135103 has 4 divisors (see below), whose sum is σ = 133173768. Its totient is φ = 133096440.

The previous prime is 133135081. The next prime is 133135133. The reversal of 133135103 is 301531331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133135103 - 2¹² = 133131007 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 (133135133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13601 + ... + 21242.

It is an arithmetic number, because the mean of its divisors is an integer number (33293442).

Almost surely, 2^133135103 is an apocalyptic number.

133135103 is a deficient number, since it is larger than the sum of its proper divisors (38665).

133135103 is an equidigital number, since it uses as much as digits as its factorization.

133135103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38664.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 133135103 is about 11538.4185658174. The cubic root of 133135103 is about 510.6196530669.

Adding to 133135103 its reverse (301531331), we get a palindrome (434666434).

The spelling of 133135103 in words is "one hundred thirty-three million, one hundred thirty-five thousand, one hundred three".