135503665 has 24 divisors (see below), whose sum is σ = 180651240. Its totient is φ = 97489920.

The previous prime is 135503663. The next prime is 135503701. The reversal of 135503665 is 566305531.

It can be written as a sum of positive squares in 4 ways, for example, as 28815424 + 106688241 = 5368^2 + 10329^2 .

It is not a de Polignac number, because 135503665 - 2¹ = 135503663 is a prime.

It is a super-2 number, since 2×135503665² = 36722486456864450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135503665.

It is not an unprimeable number, because it can be changed into a prime (135503663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57531 + ... + 59839.

It is an arithmetic number, because the mean of its divisors is an integer number (7527135).

Almost surely, 2^135503665 is an apocalyptic number.

It is an amenable number.

135503665 is a deficient number, since it is larger than the sum of its proper divisors (45147575).

135503665 is a wasteful number, since it uses less digits than its factorization.

135503665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 135503665 is about 11640.6041509880. The cubic root of 135503665 is about 513.6299589497.

The spelling of 135503665 in words is "one hundred thirty-five million, five hundred three thousand, six hundred sixty-five".