266453 has 4 divisors (see below), whose sum is σ = 290688. Its totient is φ = 242220.

The previous prime is 266449. The next prime is 266477. The reversal of 266453 is 354662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 266453 - 2² = 266449 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 (266053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12101 + ... + 12122.

It is an arithmetic number, because the mean of its divisors is an integer number (72672).

2²⁶⁶⁴⁵³ is an apocalyptic number.

It is an amenable number.

266453 is a deficient number, since it is larger than the sum of its proper divisors (24235).

266453 is a wasteful number, since it uses less digits than its factorization.

266453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24234.

The product of its digits is 4320, while the sum is 26.

The square root of 266453 is about 516.1908561763. The cubic root of 266453 is about 64.3487633053.

Subtracting 266453 from its reverse (354662), we obtain a square (88209 = 297²).

The spelling of 266453 in words is "two hundred sixty-six thousand, four hundred fifty-three".