133411 has 4 divisors (see below), whose sum is σ = 135000. Its totient is φ = 131824.

The previous prime is 133403. The next prime is 133417. The reversal of 133411 is 114331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114331 = 7 ⋅16333.

It is a cyclic number.

It is not a de Polignac number, because 133411 - 2³ = 133403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133391 and 133400.

It is not an unprimeable number, because it can be changed into a prime (133417) 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, 661 + ... + 838.

It is an arithmetic number, because the mean of its divisors is an integer number (33750).

2¹³³⁴¹¹ is an apocalyptic number.

133411 is a deficient number, since it is larger than the sum of its proper divisors (1589).

133411 is an equidigital number, since it uses as much as digits as its factorization.

133411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its digits is 36, while the sum is 13.

The square root of 133411 is about 365.2547056507. The cubic root of 133411 is about 51.0972130174.

Adding to 133411 its reverse (114331), we get a palindrome (247742).

The spelling of 133411 in words is "one hundred thirty-three thousand, four hundred eleven".