266370133 has 4 divisors (see below), whose sum is σ = 275555340. Its totient is φ = 257184928.

The previous prime is 266370121. The next prime is 266370149. The reversal of 266370133 is 331073662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125283249 + 141086884 = 11193^2 + 11878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266370133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266370095 and 266370104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266370113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4592560 + ... + 4592617.

It is an arithmetic number, because the mean of its divisors is an integer number (68888835).

Almost surely, 2^266370133 is an apocalyptic number.

It is an amenable number.

266370133 is a deficient number, since it is larger than the sum of its proper divisors (9185207).

266370133 is an equidigital number, since it uses as much as digits as its factorization.

266370133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9185206.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 266370133 is about 16320.8496408735. The cubic root of 266370133 is about 643.4209178246.

The spelling of 266370133 in words is "two hundred sixty-six million, three hundred seventy thousand, one hundred thirty-three".