133343 has 8 divisors (see below), whose sum is σ = 156288. Its totient is φ = 111384.

The previous prime is 133337. The next prime is 133349. The reversal of 133343 is 343331.

133343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (133337) and next prime (133349).

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

It is not a de Polignac number, because 133343 - 2⁴ = 133327 is a prime.

It is a d-powerful number, because it can be written as 1 + 3² + 3⁷ + 3⁸ + 4⁸ + 3¹⁰ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133349) 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, 80 + ... + 522.

It is an arithmetic number, because the mean of its divisors is an integer number (19536).

2¹³³³⁴³ is an apocalyptic number.

133343 is a deficient number, since it is larger than the sum of its proper divisors (22945).

133343 is an equidigital number, since it uses as much as digits as its factorization.

133343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 324, while the sum is 17.

The square root of 133343 is about 365.1616080587. The cubic root of 133343 is about 51.0885300727.

Adding to 133343 its reverse (343331), we get a palindrome (476674).

The spelling of 133343 in words is "one hundred thirty-three thousand, three hundred forty-three".