8208143 has 2 divisors, whose sum is σ = 8208144. Its totient is φ = 8208142.

The previous prime is 8208113. The next prime is 8208157. The reversal of 8208143 is 3418028.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8208143 is a prime.

It is a super-2 number, since 2×8208143² = 134747223016898, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p₅₅₂₈₄₂ and since 8208143 and 552842 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8208113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4104071 + 4104072.

It is an arithmetic number, because the mean of its divisors is an integer number (4104072).

Almost surely, 2^8208143 is an apocalyptic number.

8208143 is a deficient number, since it is larger than the sum of its proper divisors (1).

8208143 is an equidigital number, since it uses as much as digits as its factorization.

8208143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8208143 is about 2864.9856893185. The cubic root of 8208143 is about 201.7196958497.

The spelling of 8208143 in words is "eight million, two hundred eight thousand, one hundred forty-three".