2194903 has 2 divisors, whose sum is σ = 2194904. Its totient is φ = 2194902.

The previous prime is 2194901. The next prime is 2194931. The reversal of 2194903 is 3094912.

It is a happy number.

It is an a-pointer prime, because the next prime (2194931) can be obtained adding 2194903 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2194903 - 2¹ = 2194901 is a prime.

Together with 2194901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2194901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097451 + 1097452.

It is an arithmetic number, because the mean of its divisors is an integer number (1097452).

2^2194903 is an apocalyptic number.

2194903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194903 is an equidigital number, since it uses as much as digits as its factorization.

2194903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2194903 is about 1481.5205027268. The cubic root of 2194903 is about 129.9586258868.

Subtracting 2194903 from its reverse (3094912), we obtain a palindrome (900009).

The spelling of 2194903 in words is "two million, one hundred ninety-four thousand, nine hundred three".