1266241 has 2 divisors, whose sum is σ = 1266242. Its totient is φ = 1266240.

The previous prime is 1266229. The next prime is 1266247. The reversal of 1266241 is 1426621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 65025 = 1096^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1266241 - 2⁷ = 1266113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633120 + 633121.

It is an arithmetic number, because the mean of its divisors is an integer number (633121).

2^1266241 is an apocalyptic number.

It is an amenable number.

1266241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266241 is an equidigital number, since it uses as much as digits as its factorization.

1266241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 1266241 is about 1125.2737444729. The cubic root of 1266241 is about 108.1862640770.

The spelling of 1266241 in words is "one million, two hundred sixty-six thousand, two hundred forty-one".