260509613 has 36 divisors (see below), whose sum is σ = 332966304. Its totient is φ = 199555200.

The previous prime is 260509607. The next prime is 260509631. The reversal of 260509613 is 316905062.

It is a happy number.

It is not a de Polignac number, because 260509613 - 2⁴ = 260509597 is a prime.

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 260509613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260509633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1988558 + ... + 1988688.

It is an arithmetic number, because the mean of its divisors is an integer number (9249064).

Almost surely, 2^260509613 is an apocalyptic number.

It is an amenable number.

260509613 is a deficient number, since it is larger than the sum of its proper divisors (72456691).

260509613 is a wasteful number, since it uses less digits than its factorization.

260509613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 260509613 is about 16140.3101890887. The cubic root of 260509613 is about 638.6671586531.

The spelling of 260509613 in words is "two hundred sixty million, five hundred nine thousand, six hundred thirteen".