20069143 has 2 divisors, whose sum is σ = 20069144. Its totient is φ = 20069142.

The previous prime is 20069123. The next prime is 20069167. The reversal of 20069143 is 34196002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20069143 - 2¹⁷ = 19938071 is a prime.

It is equal to p_1274740 and since 20069143 and 1274740 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 (20069123) 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, 10034571 + 10034572.

It is an arithmetic number, because the mean of its divisors is an integer number (10034572).

Almost surely, 2^20069143 is an apocalyptic number.

20069143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20069143 is an equidigital number, since it uses as much as digits as its factorization.

20069143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20069143 is about 4479.8597076248. The cubic root of 20069143 is about 271.7542068411.

The spelling of 20069143 in words is "twenty million, sixty-nine thousand, one hundred forty-three".