266023 has 2 divisors, whose sum is σ = 266024. Its totient is φ = 266022.

The previous prime is 266009. The next prime is 266027. The reversal of 266023 is 320662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266023 - 2⁹ = 265511 is a prime.

266023 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133011 + 133012.

It is an arithmetic number, because the mean of its divisors is an integer number (133012).

2²⁶⁶⁰²³ is an apocalyptic number.

266023 is a deficient number, since it is larger than the sum of its proper divisors (1).

266023 is an equidigital number, since it uses as much as digits as its factorization.

266023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 266023 is about 515.7741753907. The cubic root of 266023 is about 64.3141294723.

Adding to 266023 its reverse (320662), we get a palindrome (586685).

The spelling of 266023 in words is "two hundred sixty-six thousand, twenty-three".