1285069 has 2 divisors, whose sum is σ = 1285070. Its totient is φ = 1285068.

The previous prime is 1285061. The next prime is 1285099. The reversal of 1285069 is 9605821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660969 + 624100 = 813^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1285069 - 2³ = 1285061 is a prime.

It is a super-2 number, since 2×1285069² = 3302804669522, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1285069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642534 + 642535.

It is an arithmetic number, because the mean of its divisors is an integer number (642535).

2^1285069 is an apocalyptic number.

It is an amenable number.

1285069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285069 is an equidigital number, since it uses as much as digits as its factorization.

1285069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1285069 is about 1133.6088390622. The cubic root of 1285069 is about 108.7198427852.

The spelling of 1285069 in words is "one million, two hundred eighty-five thousand, sixty-nine".