133105 has 8 divisors (see below), whose sum is σ = 182592. Its totient is φ = 91248.

The previous prime is 133103. The next prime is 133109. The reversal of 133105 is 501331.

133105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 133105 - 2¹ = 133103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1867 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (22824).

2¹³³¹⁰⁵ is an apocalyptic number.

It is an amenable number.

133105 is a deficient number, since it is larger than the sum of its proper divisors (49487).

133105 is an equidigital number, since it uses as much as digits as its factorization.

133105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815.

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

The square root of 133105 is about 364.8355794053. The cubic root of 133105 is about 51.0581164990.

Adding to 133105 its reverse (501331), we get a palindrome (634436).

The spelling of 133105 in words is "one hundred thirty-three thousand, one hundred five".