260542261 has 12 divisors (see below), whose sum is σ = 303892992. Its totient is φ = 222722808.

The previous prime is 260542253. The next prime is 260542277. The reversal of 260542261 is 162245062.

It is not a de Polignac number, because 260542261 - 2³ = 260542253 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 (260542361) 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 11 ways as a sum of consecutive naturals, for example, 11826 + ... + 25708.

It is an arithmetic number, because the mean of its divisors is an integer number (25324416).

Almost surely, 2^260542261 is an apocalyptic number.

It is an amenable number.

260542261 is a deficient number, since it is larger than the sum of its proper divisors (43350731).

260542261 is a wasteful number, since it uses less digits than its factorization.

260542261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14280 (or 14273 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 260542261 is about 16141.3215382137. The cubic root of 260542261 is about 638.6938375591.

The spelling of 260542261 in words is "two hundred sixty million, five hundred forty-two thousand, two hundred sixty-one".