260645285 has 8 divisors (see below), whose sum is σ = 314413056. Its totient is φ = 207423760.

The previous prime is 260645267. The next prime is 260645291. The reversal of 260645285 is 582546062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260645285 - 2¹⁶ = 260579749 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 135509 + ... + 137418.

It is an arithmetic number, because the mean of its divisors is an integer number (39301632).

Almost surely, 2^260645285 is an apocalyptic number.

It is an amenable number.

260645285 is a deficient number, since it is larger than the sum of its proper divisors (53767771).

260645285 is a wasteful number, since it uses less digits than its factorization.

260645285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273123.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 260645285 is about 16144.5125352238. The cubic root of 260645285 is about 638.7780108810.

The spelling of 260645285 in words is "two hundred sixty million, six hundred forty-five thousand, two hundred eighty-five".