266195 has 4 divisors (see below), whose sum is σ = 319440. Its totient is φ = 212952.

The previous prime is 266183. The next prime is 266221. The reversal of 266195 is 591662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 591662 = 2 ⋅295831.

It is a cyclic number.

It is not a de Polignac number, because 266195 - 2¹⁴ = 249811 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26615 + ... + 26624.

It is an arithmetic number, because the mean of its divisors is an integer number (79860).

2²⁶⁶¹⁹⁵ is an apocalyptic number.

266195 is a deficient number, since it is larger than the sum of its proper divisors (53245).

266195 is an equidigital number, since it uses as much as digits as its factorization.

266195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53244.

The product of its digits is 3240, while the sum is 29.

The square root of 266195 is about 515.9408880870. The cubic root of 266195 is about 64.3279874809.

The spelling of 266195 in words is "two hundred sixty-six thousand, one hundred ninety-five".