16239143 has 2 divisors, whose sum is σ = 16239144. Its totient is φ = 16239142.

The previous prime is 16239137. The next prime is 16239149. The reversal of 16239143 is 34193261.

It is a balanced prime because it is at equal distance from previous prime (16239137) and next prime (16239149).

It is a cyclic number.

It is not a de Polignac number, because 16239143 - 2¹² = 16235047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16239149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8119571 + 8119572.

It is an arithmetic number, because the mean of its divisors is an integer number (8119572).

Almost surely, 2^16239143 is an apocalyptic number.

16239143 is a deficient number, since it is larger than the sum of its proper divisors (1).

16239143 is an equidigital number, since it uses as much as digits as its factorization.

16239143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 16239143 is about 4029.7820040295. The cubic root of 16239143 is about 253.2334287893.

The spelling of 16239143 in words is "sixteen million, two hundred thirty-nine thousand, one hundred forty-three".