266245 has 8 divisors (see below), whose sum is σ = 365184. Its totient is φ = 182544.

The previous prime is 266239. The next prime is 266261. The reversal of 266245 is 542662.

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

It is a cyclic number.

It is not a de Polignac number, because 266245 - 2⁷ = 266117 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 6³ + 2⁹ + 6³ + 4⁹ + 5⁵ .

It is a Duffinian number.

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, 3769 + ... + 3838.

It is an arithmetic number, because the mean of its divisors is an integer number (45648).

2²⁶⁶²⁴⁵ is an apocalyptic number.

It is an amenable number.

266245 is a deficient number, since it is larger than the sum of its proper divisors (98939).

266245 is an equidigital number, since it uses as much as digits as its factorization.

266245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619.

The product of its digits is 2880, while the sum is 25.

The square root of 266245 is about 515.9893409752. The cubic root of 266245 is about 64.3320148518.

The spelling of 266245 in words is "two hundred sixty-six thousand, two hundred forty-five".