266122147 has 2 divisors, whose sum is σ = 266122148. Its totient is φ = 266122146.

The previous prime is 266122139. The next prime is 266122159. The reversal of 266122147 is 741221662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266122147 - 2³ = 266122139 is a prime.

It is not a weakly prime, because it can be changed into another prime (266122117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133061073 + 133061074.

It is an arithmetic number, because the mean of its divisors is an integer number (133061074).

Almost surely, 2^266122147 is an apocalyptic number.

266122147 is a deficient number, since it is larger than the sum of its proper divisors (1).

266122147 is an equidigital number, since it uses as much as digits as its factorization.

266122147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 266122147 is about 16313.2506570579. The cubic root of 266122147 is about 643.2211845697.

The spelling of 266122147 in words is "two hundred sixty-six million, one hundred twenty-two thousand, one hundred forty-seven".