266134853 has 4 divisors (see below), whose sum is σ = 266231628. Its totient is φ = 266038080.

The previous prime is 266134837. The next prime is 266134877. The reversal of 266134853 is 358431662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 358431662 = 2 ⋅179215831.

It can be written as a sum of positive squares in 2 ways, for example, as 84235684 + 181899169 = 9178^2 + 13487^2 .

It is a cyclic number.

It is not a de Polignac number, because 266134853 - 2⁴ = 266134837 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 (266134153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44138 + ... + 49803.

It is an arithmetic number, because the mean of its divisors is an integer number (66557907).

Almost surely, 2^266134853 is an apocalyptic number.

It is an amenable number.

266134853 is a deficient number, since it is larger than the sum of its proper divisors (96775).

266134853 is an equidigital number, since it uses as much as digits as its factorization.

266134853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96774.

The product of its digits is 103680, while the sum is 38.

The square root of 266134853 is about 16313.6400904274. The cubic root of 266134853 is about 643.2314212704.

The spelling of 266134853 in words is "two hundred sixty-six million, one hundred thirty-four thousand, eight hundred fifty-three".