266947201 has 4 divisors (see below), whose sum is σ = 269699332. Its totient is φ = 264195072.

The previous prime is 266947199. The next prime is 266947297. The reversal of 266947201 is 102749662.

266947201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102749662 = 2 ⋅51374831.

It can be written as a sum of positive squares in 2 ways, for example, as 39992976 + 226954225 = 6324^2 + 15065^2 .

It is a cyclic number.

It is not a de Polignac number, because 266947201 - 2¹ = 266947199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266947301) 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, 1375920 + ... + 1376113.

It is an arithmetic number, because the mean of its divisors is an integer number (67424833).

Almost surely, 2^266947201 is an apocalyptic number.

It is an amenable number.

266947201 is a deficient number, since it is larger than the sum of its proper divisors (2752131).

266947201 is an equidigital number, since it uses as much as digits as its factorization.

266947201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752130.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 266947201 is about 16338.5189353258. The cubic root of 266947201 is about 643.8852214012.

The spelling of 266947201 in words is "two hundred sixty-six million, nine hundred forty-seven thousand, two hundred one".