133726 has 4 divisors (see below), whose sum is σ = 200592. Its totient is φ = 66862.

The previous prime is 133723. The next prime is 133733. The reversal of 133726 is 627331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 627331 = 439 ⋅1429.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 7 + 3⁷ + 2¹⁷ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 133697 and 133706.

It is a congruent 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 as a sum of consecutive naturals, namely, 33430 + ... + 33433.

It is an arithmetic number, because the mean of its divisors is an integer number (50148).

2¹³³⁷²⁶ is an apocalyptic number.

133726 is a deficient number, since it is larger than the sum of its proper divisors (66866).

133726 is an equidigital number, since it uses as much as digits as its factorization.

133726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66865.

The product of its digits is 756, while the sum is 22.

The square root of 133726 is about 365.6856573616. The cubic root of 133726 is about 51.1373970371.

The spelling of 133726 in words is "one hundred thirty-three thousand, seven hundred twenty-six".