2103791 has 2 divisors, whose sum is σ = 2103792. Its totient is φ = 2103790.

The previous prime is 2103781. The next prime is 2103793. The reversal of 2103791 is 1973012.

2103791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103791 is a prime.

It is a Sophie Germain prime.

Together with 2103793, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 0 + 3³ + 7² + 9⁴ + 1 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103793) 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, 1051895 + 1051896.

It is an arithmetic number, because the mean of its divisors is an integer number (1051896).

2^2103791 is an apocalyptic number.

2103791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103791 is an equidigital number, since it uses as much as digits as its factorization.

2103791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2103791 is about 1450.4451040974. The cubic root of 2103791 is about 128.1349285187.

The spelling of 2103791 in words is "two million, one hundred three thousand, seven hundred ninety-one".