18192143 has 2 divisors, whose sum is σ = 18192144. Its totient is φ = 18192142.

The previous prime is 18192137. The next prime is 18192173. The reversal of 18192143 is 34129181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18192143 - 2¹⁸ = 17929999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18192113) 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, 9096071 + 9096072.

It is an arithmetic number, because the mean of its divisors is an integer number (9096072).

Almost surely, 2^18192143 is an apocalyptic number.

18192143 is a deficient number, since it is larger than the sum of its proper divisors (1).

18192143 is an equidigital number, since it uses as much as digits as its factorization.

18192143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 18192143 is about 4265.2248475315. The cubic root of 18192143 is about 263.0033540609.

The spelling of 18192143 in words is "eighteen million, one hundred ninety-two thousand, one hundred forty-three".