266241379 has 2 divisors, whose sum is σ = 266241380. Its totient is φ = 266241378.

The previous prime is 266241259. The next prime is 266241383. The reversal of 266241379 is 973142662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266241379 - 2¹¹ = 266239331 is a prime.

It is not a weakly prime, because it can be changed into another prime (266241389) 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 as a sum of consecutive naturals, namely, 133120689 + 133120690.

It is an arithmetic number, because the mean of its divisors is an integer number (133120690).

Almost surely, 2^266241379 is an apocalyptic number.

266241379 is a deficient number, since it is larger than the sum of its proper divisors (1).

266241379 is an equidigital number, since it uses as much as digits as its factorization.

266241379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 266241379 is about 16316.9047003407. The cubic root of 266241379 is about 643.3172320656.

The spelling of 266241379 in words is "two hundred sixty-six million, two hundred forty-one thousand, three hundred seventy-nine".