2136863 has 2 divisors, whose sum is σ = 2136864. Its totient is φ = 2136862.

The previous prime is 2136853. The next prime is 2136877. The reversal of 2136863 is 3686312.

2136863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2136863 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 3³ + 6⁷ + 8 + 6⁸ + 3¹¹ .

It is equal to p₁₅₈₃₄₈ and since 2136863 and 158348 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2136833) 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 as a sum of consecutive naturals, namely, 1068431 + 1068432.

It is an arithmetic number, because the mean of its divisors is an integer number (1068432).

2^2136863 is an apocalyptic number.

2136863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136863 is an equidigital number, since it uses as much as digits as its factorization.

2136863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 2136863 is about 1461.8012860851. The cubic root of 2136863 is about 128.8028758215.

The spelling of 2136863 in words is "two million, one hundred thirty-six thousand, eight hundred sixty-three".