133683 has 8 divisors (see below), whose sum is σ = 194496. Its totient is φ = 81000.

The previous prime is 133673. The next prime is 133691. The reversal of 133683 is 386331.

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

It is not a de Polignac number, because 133683 - 2¹² = 129587 is a prime.

It is a super-2 number, since 2×133683² = 35742288978, which contains 22 as substring.

It is a plaindrome in base 9.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (133633) 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 7 ways as a sum of consecutive naturals, for example, 1993 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (24312).

2¹³³⁶⁸³ is an apocalyptic number.

133683 is a deficient number, since it is larger than the sum of its proper divisors (60813).

133683 is a wasteful number, since it uses less digits than its factorization.

133683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065.

The product of its digits is 1296, while the sum is 24.

The square root of 133683 is about 365.6268589696. The cubic root of 133683 is about 51.1319153212.

It can be divided in two parts, 13368 and 3, that multiplied together give a palindrome (40104).

The spelling of 133683 in words is "one hundred thirty-three thousand, six hundred eighty-three".