2103859 has 2 divisors, whose sum is σ = 2103860. Its totient is φ = 2103858.

The previous prime is 2103839. The next prime is 2103887. The reversal of 2103859 is 9583012.

It is an a-pointer prime, because the next prime (2103887) can be obtained adding 2103859 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2103859 - 2¹¹ = 2101811 is a prime.

2103859 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2103839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051929 + 1051930.

It is an arithmetic number, because the mean of its divisors is an integer number (1051930).

2^2103859 is an apocalyptic number.

2103859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103859 is an equidigital number, since it uses as much as digits as its factorization.

2103859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2103859 is about 1450.4685449881. The cubic root of 2103859 is about 128.1363090553.

The spelling of 2103859 in words is "two million, one hundred three thousand, eight hundred fifty-nine".