133941 has 4 divisors (see below), whose sum is σ = 178592. Its totient is φ = 89292.

The previous prime is 133919. The next prime is 133949. The reversal of 133941 is 149331.

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 not a de Polignac number, because 133941 - 2⁶ = 133877 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133949) 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, 22321 + ... + 22326.

It is an arithmetic number, because the mean of its divisors is an integer number (44648).

2¹³³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

133941 is a deficient number, since it is larger than the sum of its proper divisors (44651).

133941 is an equidigital number, since it uses as much as digits as its factorization.

133941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44650.

The product of its digits is 324, while the sum is 21.

The square root of 133941 is about 365.9795076230. The cubic root of 133941 is about 51.1647880042.

The spelling of 133941 in words is "one hundred thirty-three thousand, nine hundred forty-one".