1065861 has 6 divisors (see below), whose sum is σ = 1539590. Its totient is φ = 710568.

The previous prime is 1065851. The next prime is 1065887. The reversal of 1065861 is 1685601.

1065861 is a `hidden beast` number, since 1 + 0 + 658 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 820836 + 245025 = 906^2 + 495^2 .

It is not a de Polignac number, because 1065861 - 2⁵ = 1065829 is a prime.

It is a super-2 number, since 2×1065861² = 2272119342642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59206 + ... + 59223.

2^1065861 is an apocalyptic number.

It is an amenable number.

1065861 is a deficient number, since it is larger than the sum of its proper divisors (473729).

1065861 is a wasteful number, since it uses less digits than its factorization.

1065861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118435 (or 118432 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1065861 is about 1032.4054436121. The cubic root of 1065861 is about 102.1488599245.

The spelling of 1065861 in words is "one million, sixty-five thousand, eight hundred sixty-one".