135533 has 2 divisors, whose sum is σ = 135534. Its totient is φ = 135532.

The previous prime is 135511. The next prime is 135559. The reversal of 135533 is 335531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131044 + 4489 = 362^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 135533 - 2⁶ = 135469 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67766 + 67767.

It is an arithmetic number, because the mean of its divisors is an integer number (67767).

2¹³⁵⁵³³ is an apocalyptic number.

It is an amenable number.

135533 is a deficient number, since it is larger than the sum of its proper divisors (1).

135533 is an equidigital number, since it uses as much as digits as its factorization.

135533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 675, while the sum is 20.

The square root of 135533 is about 368.1480680378. The cubic root of 135533 is about 51.3667021287.

The spelling of 135533 in words is "one hundred thirty-five thousand, five hundred thirty-three".