18052143 has 4 divisors (see below), whose sum is σ = 24069528. Its totient is φ = 12034760.

The previous prime is 18052127. The next prime is 18052159. The reversal of 18052143 is 34125081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34125081 = 3 ⋅11375027.

It is an interprime number because it is at equal distance from previous prime (18052127) and next prime (18052159).

It is a cyclic number.

It is not a de Polignac number, because 18052143 - 2⁴ = 18052127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052103) 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 in 3 ways as a sum of consecutive naturals, for example, 3008688 + ... + 3008693.

It is an arithmetic number, because the mean of its divisors is an integer number (6017382).

Almost surely, 2^18052143 is an apocalyptic number.

18052143 is a deficient number, since it is larger than the sum of its proper divisors (6017385).

18052143 is an equidigital number, since it uses as much as digits as its factorization.

18052143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6017384.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18052143 is about 4248.7813546945. The cubic root of 18052143 is about 262.3269571552.

The spelling of 18052143 in words is "eighteen million, fifty-two thousand, one hundred forty-three".