133459 has 4 divisors (see below), whose sum is σ = 137104. Its totient is φ = 129816.

The previous prime is 133451. The next prime is 133481. The reversal of 133459 is 954331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954331 = 7 ⋅136333.

It is a cyclic number.

It is not a de Polignac number, because 133459 - 2³ = 133451 is a prime.

It is a super-2 number, since 2×133459² = 35622609362, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 3⁷ + 4⁸ + 3¹⁰ + 5³ + 9⁴ .

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767 + ... + 1840.

It is an arithmetic number, because the mean of its divisors is an integer number (34276).

2¹³³⁴⁵⁹ is an apocalyptic number.

133459 is a deficient number, since it is larger than the sum of its proper divisors (3645).

133459 is an equidigital number, since it uses as much as digits as its factorization.

133459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644.

The product of its digits is 1620, while the sum is 25.

The square root of 133459 is about 365.3204073139. The cubic root of 133459 is about 51.1033403785.

The spelling of 133459 in words is "one hundred thirty-three thousand, four hundred fifty-nine".