135239533 has 8 divisors (see below), whose sum is σ = 158882976. Its totient is φ = 113487600.

The previous prime is 135239519. The next prime is 135239537. The reversal of 135239533 is 335932531.

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 135239533 - 2¹⁷ = 135108461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135239537) 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, 472723 + ... + 473008.

It is an arithmetic number, because the mean of its divisors is an integer number (19860372).

Almost surely, 2^135239533 is an apocalyptic number.

135239533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135239533 is a deficient number, since it is larger than the sum of its proper divisors (23643443).

135239533 is a wasteful number, since it uses less digits than its factorization.

135239533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945755.

The product of its digits is 36450, while the sum is 34.

The square root of 135239533 is about 11629.2533294275. The cubic root of 135239533 is about 513.2960089333.

The spelling of 135239533 in words is "one hundred thirty-five million, two hundred thirty-nine thousand, five hundred thirty-three".