266144 has 12 divisors (see below), whose sum is σ = 524034. Its totient is φ = 133056.

The previous prime is 266137. The next prime is 266153. The reversal of 266144 is 441662.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 150544 + 115600 = 388^2 + 340^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4127 + ... + 4190.

2²⁶⁶¹⁴⁴ is an apocalyptic number.

It is an amenable number.

266144 is a deficient number, since it is larger than the sum of its proper divisors (257890).

266144 is an equidigital number, since it uses as much as digits as its factorization.

266144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8327 (or 8319 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 266144 is about 515.8914614529. The cubic root of 266144 is about 64.3238790430.

The spelling of 266144 in words is "two hundred sixty-six thousand, one hundred forty-four".