133753 has 4 divisors (see below), whose sum is σ = 136080. Its totient is φ = 131428.

The previous prime is 133733. The next prime is 133769. The reversal of 133753 is 357331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 357331 = 13 ⋅27487.

It is a cyclic number.

It is not a de Polignac number, because 133753 - 2⁹ = 133241 is a prime.

It is a Duffinian number.

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, 1075 + ... + 1192.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2¹³³⁷⁵³ is an apocalyptic number.

It is an amenable number.

133753 is a deficient number, since it is larger than the sum of its proper divisors (2327).

133753 is an equidigital number, since it uses as much as digits as its factorization.

133753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326.

The product of its digits is 945, while the sum is 22.

The square root of 133753 is about 365.7225724508. The cubic root of 133753 is about 51.1408384442.

The spelling of 133753 in words is "one hundred thirty-three thousand, seven hundred fifty-three".