135503565 has 32 divisors (see below), whose sum is σ = 224985600. Its totient is φ = 69588480.

The previous prime is 135503551. The next prime is 135503569. The reversal of 135503565 is 565305531.

135503565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135503565 - 2⁷ = 135503437 is a prime.

It is a super-2 number, since 2×135503565² = 36722432255418450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135503569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47191 + ... + 49979.

It is an arithmetic number, because the mean of its divisors is an integer number (7030800).

Almost surely, 2^135503565 is an apocalyptic number.

135503565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135503565 is a deficient number, since it is larger than the sum of its proper divisors (89482035).

135503565 is a wasteful number, since it uses less digits than its factorization.

135503565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917.

The product of its (nonzero) digits is 33750, while the sum is 33.

The square root of 135503565 is about 11640.5998556775. The cubic root of 135503565 is about 513.6298325989.

The spelling of 135503565 in words is "one hundred thirty-five million, five hundred three thousand, five hundred sixty-five".