1865063 has 2 divisors, whose sum is σ = 1865064. Its totient is φ = 1865062.

The previous prime is 1865057. The next prime is 1865069. The reversal of 1865063 is 3605681.

It is a balanced prime because it is at equal distance from previous prime (1865057) and next prime (1865069).

It is a cyclic number.

It is not a de Polignac number, because 1865063 - 2¹⁰ = 1864039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1865069) 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, 932531 + 932532.

It is an arithmetic number, because the mean of its divisors is an integer number (932532).

2^1865063 is an apocalyptic number.

1865063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1865063 is an equidigital number, since it uses as much as digits as its factorization.

1865063 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 29.

The square root of 1865063 is about 1365.6730941188. The cubic root of 1865063 is about 123.0923799798.

The spelling of 1865063 in words is "one million, eight hundred sixty-five thousand, sixty-three".