1260769 has 2 divisors, whose sum is σ = 1260770. Its totient is φ = 1260768.

The previous prime is 1260767. The next prime is 1260797. The reversal of 1260769 is 9670621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 429025 = 912^2 + 655^2 .

It is an emirp because it is prime and its reverse (9670621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1260769 - 2¹ = 1260767 is a prime.

It is a super-2 number, since 2×1260769² = 3179076942722, which contains 22 as substring.

Together with 1260767, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1260769.

It is not a weakly prime, because it can be changed into another prime (1260767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630384 + 630385.

It is an arithmetic number, because the mean of its divisors is an integer number (630385).

2^1260769 is an apocalyptic number.

It is an amenable number.

1260769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260769 is an equidigital number, since it uses as much as digits as its factorization.

1260769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1260769 is about 1122.8397036087. The cubic root of 1260769 is about 108.0301984597.

The spelling of 1260769 in words is "one million, two hundred sixty thousand, seven hundred sixty-nine".