18182940143 has 2 divisors, whose sum is σ = 18182940144. Its totient is φ = 18182940142.

The previous prime is 18182940119. The next prime is 18182940151. The reversal of 18182940143 is 34104928181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18182940143 - 2²² = 18178745839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18182940143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18182940103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9091470071 + 9091470072.

It is an arithmetic number, because the mean of its divisors is an integer number (9091470072).

Almost surely, 2^18182940143 is an apocalyptic number.

18182940143 is a deficient number, since it is larger than the sum of its proper divisors (1).

18182940143 is an equidigital number, since it uses as much as digits as its factorization.

18182940143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 18182940143 in words is "eighteen billion, one hundred eighty-two million, nine hundred forty thousand, one hundred forty-three".