266305147 has 2 divisors, whose sum is σ = 266305148. Its totient is φ = 266305146.

The previous prime is 266305111. The next prime is 266305163. The reversal of 266305147 is 741503662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266305147 - 2¹⁵ = 266272379 is a prime.

It is not a weakly prime, because it can be changed into another prime (266305447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133152573 + 133152574.

It is an arithmetic number, because the mean of its divisors is an integer number (133152574).

Almost surely, 2^266305147 is an apocalyptic number.

266305147 is a deficient number, since it is larger than the sum of its proper divisors (1).

266305147 is an equidigital number, since it uses as much as digits as its factorization.

266305147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 266305147 is about 16318.8586304312. The cubic root of 266305147 is about 643.3685886938.

The spelling of 266305147 in words is "two hundred sixty-six million, three hundred five thousand, one hundred forty-seven".