266141 has 4 divisors (see below), whose sum is σ = 273372. Its totient is φ = 258912.

The previous prime is 266137. The next prime is 266153. The reversal of 266141 is 141662.

It is a happy number.

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 122500 + 143641 = 350^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 266141 - 2² = 266137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3560 + ... + 3633.

It is an arithmetic number, because the mean of its divisors is an integer number (68343).

2²⁶⁶¹⁴¹ is an apocalyptic number.

It is an amenable number.

266141 is a deficient number, since it is larger than the sum of its proper divisors (7231).

266141 is an equidigital number, since it uses as much as digits as its factorization.

266141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230.

The product of its digits is 288, while the sum is 20.

The square root of 266141 is about 515.8885538564. Note that the first 3 decimals coincide. The cubic root of 266141 is about 64.3236373538.

The spelling of 266141 in words is "two hundred sixty-six thousand, one hundred forty-one".