609042085 has 16 divisors (see below), whose sum is σ = 792720432. Its totient is φ = 447385600.

The previous prime is 609042061. The next prime is 609042097. The reversal of 609042085 is 580240906.

It is a happy number.

609042085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 145974724 + 463067361 = 12082^2 + 21519^2 .

It is not a de Polignac number, because 609042085 - 2⁵ = 609042053 is a prime.

It is a super-2 number, since 2×609042085² = 741864522602294450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609042085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83896 + ... + 90865.

It is an arithmetic number, because the mean of its divisors is an integer number (49545027).

Almost surely, 2^609042085 is an apocalyptic number.

It is an amenable number.

609042085 is a deficient number, since it is larger than the sum of its proper divisors (183678347).

609042085 is a wasteful number, since it uses less digits than its factorization.

609042085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174824.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 609042085 is about 24678.7780289057. The cubic root of 609042085 is about 847.6484414966.

The spelling of 609042085 in words is "six hundred nine million, forty-two thousand, eighty-five".