261095 has 8 divisors (see below), whose sum is σ = 317760. Its totient is φ = 205920.

The previous prime is 261089. The next prime is 261101. The reversal of 261095 is 590162.

It is an interprime number because it is at equal distance from previous prime (261089) and next prime (261101).

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

It is not a de Polignac number, because 261095 - 2⁶ = 261031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 261095.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (39720).

2²⁶¹⁰⁹⁵ is an apocalyptic number.

261095 is a deficient number, since it is larger than the sum of its proper divisors (56665).

261095 is an equidigital number, since it uses as much as digits as its factorization.

261095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 261095 is about 510.9745590536. The cubic root of 261095 is about 63.9145180378.

The spelling of 261095 in words is "two hundred sixty-one thousand, ninety-five".