135503533 has 4 divisors (see below), whose sum is σ = 147822048. Its totient is φ = 123185020.

The previous prime is 135503531. The next prime is 135503551. The reversal of 135503533 is 335305531.

135503533 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: 335305531 = 11 ⋅30482321.

It is a cyclic number.

It is not a de Polignac number, because 135503533 - 2¹ = 135503531 is a prime.

It is a super-2 number, since 2×135503533² = 36722414910964178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135503531) 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, 6159241 + ... + 6159262.

It is an arithmetic number, because the mean of its divisors is an integer number (36955512).

Almost surely, 2^135503533 is an apocalyptic number.

It is an amenable number.

135503533 is a deficient number, since it is larger than the sum of its proper divisors (12318515).

135503533 is a wasteful number, since it uses less digits than its factorization.

135503533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318514.

The product of its (nonzero) digits is 10125, while the sum is 28.

The square root of 135503533 is about 11640.5984811778. The cubic root of 135503533 is about 513.6297921666.

The spelling of 135503533 in words is "one hundred thirty-five million, five hundred three thousand, five hundred thirty-three".