266484913 has 2 divisors, whose sum is σ = 266484914. Its totient is φ = 266484912.

The previous prime is 266484847. The next prime is 266484947. The reversal of 266484913 is 319484662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212197489 + 54287424 = 14567^2 + 7368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266484913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266484913.

It is not a weakly prime, because it can be changed into another prime (266184913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133242456 + 133242457.

It is an arithmetic number, because the mean of its divisors is an integer number (133242457).

Almost surely, 2^266484913 is an apocalyptic number.

It is an amenable number.

266484913 is a deficient number, since it is larger than the sum of its proper divisors (1).

266484913 is an equidigital number, since it uses as much as digits as its factorization.

266484913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 266484913 is about 16324.3656232026. The cubic root of 266484913 is about 643.5133221381.

The spelling of 266484913 in words is "two hundred sixty-six million, four hundred eighty-four thousand, nine hundred thirteen".