266421041 has 2 divisors, whose sum is σ = 266421042. Its totient is φ = 266421040.

The previous prime is 266420971. The next prime is 266421083. The reversal of 266421041 is 140124662.

266421041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265820416 + 600625 = 16304^2 + 775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266421041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266421041.

It is not a weakly prime, because it can be changed into another prime (266421241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133210520 + 133210521.

It is an arithmetic number, because the mean of its divisors is an integer number (133210521).

Almost surely, 2^266421041 is an apocalyptic number.

It is an amenable number.

266421041 is a deficient number, since it is larger than the sum of its proper divisors (1).

266421041 is an equidigital number, since it uses as much as digits as its factorization.

266421041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 266421041 is about 16322.4091665416. The cubic root of 266421041 is about 643.4619048843.

The spelling of 266421041 in words is "two hundred sixty-six million, four hundred twenty-one thousand, forty-one".