605163505 has 4 divisors (see below), whose sum is σ = 726196212. Its totient is φ = 484130800.

The previous prime is 605163491. The next prime is 605163523. The reversal of 605163505 is 505361506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 233753521 + 371409984 = 15289^2 + 19272^2 .

It is not a de Polignac number, because 605163505 - 2⁵ = 605163473 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 60516346 + ... + 60516355.

It is an arithmetic number, because the mean of its divisors is an integer number (181549053).

Almost surely, 2^605163505 is an apocalyptic number.

It is an amenable number.

605163505 is a deficient number, since it is larger than the sum of its proper divisors (121032707).

605163505 is a wasteful number, since it uses less digits than its factorization.

605163505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121032706.

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

The square root of 605163505 is about 24600.0712397342. The cubic root of 605163505 is about 845.8452403920.

The spelling of 605163505 in words is "six hundred five million, one hundred sixty-three thousand, five hundred five".