605135605 has 16 divisors (see below), whose sum is σ = 769532400. Its totient is φ = 456010240.

The previous prime is 605135563. The next prime is 605135623. The reversal of 605135605 is 506531506.

It can be written as a sum of positive squares in 8 ways, for example, as 82464561 + 522671044 = 9081^2 + 22862^2 .

It is not a de Polignac number, because 605135605 - 2¹⁹ = 604611317 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 44950 + ... + 56839.

It is an arithmetic number, because the mean of its divisors is an integer number (48095775).

Almost surely, 2^605135605 is an apocalyptic number.

It is an amenable number.

605135605 is a deficient number, since it is larger than the sum of its proper divisors (164396795).

605135605 is a wasteful number, since it uses less digits than its factorization.

605135605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101864.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 605135605 is about 24599.5041616696. The cubic root of 605135605 is about 845.8322414561.

The spelling of 605135605 in words is "six hundred five million, one hundred thirty-five thousand, six hundred five".