605671109 has 12 divisors (see below), whose sum is σ = 619511532. Its totient is φ = 592105920.

The previous prime is 605671067. The next prime is 605671111. The reversal of 605671109 is 901176506.

It can be written as a sum of positive squares in 2 ways, for example, as 438693025 + 166978084 = 20945^2 + 12922^2 .

It is not a de Polignac number, because 605671109 - 2²⁸ = 337235653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605671139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690179 + ... + 691055.

It is an arithmetic number, because the mean of its divisors is an integer number (51625961).

Almost surely, 2^605671109 is an apocalyptic number.

It is an amenable number.

605671109 is a deficient number, since it is larger than the sum of its proper divisors (13840423).

605671109 is an equidigital number, since it uses as much as digits as its factorization.

605671109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 605671109 is about 24610.3862017645. The cubic root of 605671109 is about 846.0816692987.

The spelling of 605671109 in words is "six hundred five million, six hundred seventy-one thousand, one hundred nine".