1659063 has 16 divisors (see below), whose sum is σ = 2547200. Its totient is φ = 940896.

The previous prime is 1659041. The next prime is 1659067. The reversal of 1659063 is 3609561.

It is a happy number.

It is not a de Polignac number, because 1659063 - 2⁶ = 1658999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1659063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659067) 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 in 15 ways as a sum of consecutive naturals, for example, 3981 + ... + 4377.

It is an arithmetic number, because the mean of its divisors is an integer number (159200).

2^1659063 is an apocalyptic number.

1659063 is a deficient number, since it is larger than the sum of its proper divisors (888137).

1659063 is a wasteful number, since it uses less digits than its factorization.

1659063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1659063 is about 1288.0461948238. The cubic root of 1659063 is about 118.3825323863.

It can be divided in two parts, 16590 and 63, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 1659063 in words is "one million, six hundred fifty-nine thousand, sixty-three".