261068 has 6 divisors (see below), whose sum is σ = 456876. Its totient is φ = 130532.

The previous prime is 261061. The next prime is 261071. The reversal of 261068 is 860162.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 261068.

It is not an unprimeable number, because it can be changed into a prime (261061) by changing a digit.

261068 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 32630 + ... + 32637.

It is an arithmetic number, because the mean of its divisors is an integer number (76146).

2²⁶¹⁰⁶⁸ is an apocalyptic number.

It is an amenable number.

261068 is a deficient number, since it is larger than the sum of its proper divisors (195808).

261068 is a wasteful number, since it uses less digits than its factorization.

261068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65271 (or 65269 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 261068 is about 510.9481382685. The cubic root of 261068 is about 63.9123148149.

The spelling of 261068 in words is "two hundred sixty-one thousand, sixty-eight".