266284849 has 2 divisors, whose sum is σ = 266284850. Its totient is φ = 266284848.

The previous prime is 266284841. The next prime is 266284859. The reversal of 266284849 is 948482662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256000000 + 10284849 = 16000^2 + 3207^2 .

It is a cyclic number.

It is not a de Polignac number, because 266284849 - 2³ = 266284841 is a prime.

It is not a weakly prime, because it can be changed into another prime (266284841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133142424 + 133142425.

It is an arithmetic number, because the mean of its divisors is an integer number (133142425).

Almost surely, 2^266284849 is an apocalyptic number.

It is an amenable number.

266284849 is a deficient number, since it is larger than the sum of its proper divisors (1).

266284849 is an equidigital number, since it uses as much as digits as its factorization.

266284849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 49.

The square root of 266284849 is about 16318.2367000850. The cubic root of 266284849 is about 643.3522422487.

The spelling of 266284849 in words is "two hundred sixty-six million, two hundred eighty-four thousand, eight hundred forty-nine".