18222703 has 2 divisors, whose sum is σ = 18222704. Its totient is φ = 18222702.

The previous prime is 18222689. The next prime is 18222707. The reversal of 18222703 is 30722281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18222703 - 2⁵ = 18222671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18222707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9111351 + 9111352.

It is an arithmetic number, because the mean of its divisors is an integer number (9111352).

Almost surely, 2^18222703 is an apocalyptic number.

18222703 is a deficient number, since it is larger than the sum of its proper divisors (1).

18222703 is an equidigital number, since it uses as much as digits as its factorization.

18222703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 18222703 is about 4268.8058049061. The cubic root of 18222703 is about 263.1505400590.

Adding to 18222703 its reverse (30722281), we get a palindrome (48944984).

The spelling of 18222703 in words is "eighteen million, two hundred twenty-two thousand, seven hundred three".