260541305 has 4 divisors (see below), whose sum is σ = 312649572. Its totient is φ = 208433040.

The previous prime is 260541277. The next prime is 260541311. The reversal of 260541305 is 503145062.

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 98029801 + 162511504 = 9901^2 + 12748^2 .

It is not a de Polignac number, because 260541305 - 2⁶ = 260541241 is a prime.

It is a super-2 number, since 2×260541305² = 135763543222206050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26054126 + ... + 26054135.

It is an arithmetic number, because the mean of its divisors is an integer number (78162393).

Almost surely, 2^260541305 is an apocalyptic number.

It is an amenable number.

260541305 is a deficient number, since it is larger than the sum of its proper divisors (52108267).

260541305 is an equidigital number, since it uses as much as digits as its factorization.

260541305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52108266.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 260541305 is about 16141.2919247500. The cubic root of 260541305 is about 638.6930563780.

Adding to 260541305 its reverse (503145062), we get a palindrome (763686367).

The spelling of 260541305 in words is "two hundred sixty million, five hundred forty-one thousand, three hundred five".