2180803 has 2 divisors, whose sum is σ = 2180804. Its totient is φ = 2180802.

The previous prime is 2180797. The next prime is 2180807. The reversal of 2180803 is 3080812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2180803 is a prime.

It is not a weakly prime, because it can be changed into another prime (2180807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090401 + 1090402.

It is an arithmetic number, because the mean of its divisors is an integer number (1090402).

2^2180803 is an apocalyptic number.

2180803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180803 is an equidigital number, since it uses as much as digits as its factorization.

2180803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2180803 is about 1476.7542110995. The cubic root of 2180803 is about 129.6797442403.

Subtracting 2180803 from its reverse (3080812), we obtain a palindrome (900009).

The spelling of 2180803 in words is "two million, one hundred eighty thousand, eight hundred three".