135885533 has 4 divisors (see below), whose sum is σ = 155297760. Its totient is φ = 116473308.

The previous prime is 135885527. The next prime is 135885553. The reversal of 135885533 is 335588531.

135885533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 335588531 = 8369 ⋅40099.

It is not a de Polignac number, because 135885533 - 2⁴ = 135885517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135885553) 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, 9706103 + ... + 9706116.

It is an arithmetic number, because the mean of its divisors is an integer number (38824440).

Almost surely, 2^135885533 is an apocalyptic number.

It is an amenable number.

135885533 is a deficient number, since it is larger than the sum of its proper divisors (19412227).

135885533 is an equidigital number, since it uses as much as digits as its factorization.

135885533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19412226.

The product of its digits is 216000, while the sum is 41.

The square root of 135885533 is about 11656.9950244478. The cubic root of 135885533 is about 514.1119997475. Note that the first 3 decimals are identical.

The spelling of 135885533 in words is "one hundred thirty-five million, eight hundred eighty-five thousand, five hundred thirty-three".