133401 has 8 divisors (see below), whose sum is σ = 181440. Its totient is φ = 87152.

The previous prime is 133391. The next prime is 133403. The reversal of 133401 is 104331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133401 - 2⁶ = 133337 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (133403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 578.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2¹³³⁴⁰¹ is an apocalyptic number.

It is an amenable number.

133401 is a deficient number, since it is larger than the sum of its proper divisors (48039).

133401 is an equidigital number, since it uses as much as digits as its factorization.

133401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 133401 is about 365.2410163166. The cubic root of 133401 is about 51.0959362988.

Adding to 133401 its reverse (104331), we get a palindrome (237732).

The spelling of 133401 in words is "one hundred thirty-three thousand, four hundred one".