266229 has 6 divisors (see below), whose sum is σ = 384566. Its totient is φ = 177480.

The previous prime is 266221. The next prime is 266239. The reversal of 266229 is 922662.

It can be written as a sum of positive squares in only one way, i.e., 248004 + 18225 = 498^2 + 135^2 .

It is not a de Polignac number, because 266229 - 2³ = 266221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14782 + ... + 14799.

2²⁶⁶²²⁹ is an apocalyptic number.

It is an amenable number.

266229 is a deficient number, since it is larger than the sum of its proper divisors (118337).

266229 is a wasteful number, since it uses less digits than its factorization.

266229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29587 (or 29584 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 266229 is about 515.9738365460. The cubic root of 266229 is about 64.3307261480.

Adding to 266229 its sum of digits (27), we get a square (266256 = 516²).

The spelling of 266229 in words is "two hundred sixty-six thousand, two hundred twenty-nine".