266254 has 16 divisors (see below), whose sum is σ = 435456. Its totient is φ = 121600.

The previous prime is 266239. The next prime is 266261. The reversal of 266254 is 452662.

It is a congruent number.

It is an unprimeable number.

266254 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299 + ... + 1489.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2²⁶⁶²⁵⁴ is an apocalyptic number.

266254 is a deficient number, since it is larger than the sum of its proper divisors (169202).

266254 is a wasteful number, since it uses less digits than its factorization.

266254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

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

The square root of 266254 is about 515.9980620119. The cubic root of 266254 is about 64.3327397250.

The spelling of 266254 in words is "two hundred sixty-six thousand, two hundred fifty-four".