1285759 has 2 divisors, whose sum is σ = 1285760. Its totient is φ = 1285758.

The previous prime is 1285747. The next prime is 1285763. The reversal of 1285759 is 9575821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1285759 - 2⁹ = 1285247 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642879 + 642880.

It is an arithmetic number, because the mean of its divisors is an integer number (642880).

2^1285759 is an apocalyptic number.

1285759 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285759 is an equidigital number, since it uses as much as digits as its factorization.

1285759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 37.

The square root of 1285759 is about 1133.9131360029. The cubic root of 1285759 is about 108.7392978414.

The spelling of 1285759 in words is "one million, two hundred eighty-five thousand, seven hundred fifty-nine".