18192943 has 2 divisors, whose sum is σ = 18192944. Its totient is φ = 18192942.

The previous prime is 18192929. The next prime is 18192953. The reversal of 18192943 is 34929181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18192943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18192953) 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, 9096471 + 9096472.

It is an arithmetic number, because the mean of its divisors is an integer number (9096472).

Almost surely, 2^18192943 is an apocalyptic number.

18192943 is a deficient number, since it is larger than the sum of its proper divisors (1).

18192943 is an equidigital number, since it uses as much as digits as its factorization.

18192943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 18192943 is about 4265.3186281918. The cubic root of 18192943 is about 263.0072091977.

The spelling of 18192943 in words is "eighteen million, one hundred ninety-two thousand, nine hundred forty-three".