1266757 has 2 divisors, whose sum is σ = 1266758. Its totient is φ = 1266756.

The previous prime is 1266751. The next prime is 1266761. The reversal of 1266757 is 7576621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 119716 = 1071^2 + 346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1266757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633378 + 633379.

It is an arithmetic number, because the mean of its divisors is an integer number (633379).

2^1266757 is an apocalyptic number.

It is an amenable number.

1266757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266757 is an equidigital number, since it uses as much as digits as its factorization.

1266757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 1266757 is about 1125.5029986633. The cubic root of 1266757 is about 108.2009575756.

The spelling of 1266757 in words is "one million, two hundred sixty-six thousand, seven hundred fifty-seven".