133793 has 4 divisors (see below), whose sum is σ = 145968. Its totient is φ = 121620.

The previous prime is 133781. The next prime is 133801. The reversal of 133793 is 397331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (133723) 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, 6071 + ... + 6092.

It is an arithmetic number, because the mean of its divisors is an integer number (36492).

2¹³³⁷⁹³ is an apocalyptic number.

It is an amenable number.

133793 is a deficient number, since it is larger than the sum of its proper divisors (12175).

133793 is a wasteful number, since it uses less digits than its factorization.

133793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12174.

The product of its digits is 1701, while the sum is 26.

The square root of 133793 is about 365.7772546236. Note that the first 3 decimals coincide. The cubic root of 133793 is about 51.1459359738.

The spelling of 133793 in words is "one hundred thirty-three thousand, seven hundred ninety-three".