159887543 has 2 divisors, whose sum is σ = 159887544. Its totient is φ = 159887542.

The previous prime is 159887503. The next prime is 159887549. The reversal of 159887543 is 345788951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159887543 - 2⁶ = 159887479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159887491 and 159887500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159887549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79943771 + 79943772.

It is an arithmetic number, because the mean of its divisors is an integer number (79943772).

Almost surely, 2^159887543 is an apocalyptic number.

159887543 is a deficient number, since it is larger than the sum of its proper divisors (1).

159887543 is an equidigital number, since it uses as much as digits as its factorization.

159887543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 50.

The square root of 159887543 is about 12644.6646060700. The cubic root of 159887543 is about 542.7563038162.

The spelling of 159887543 in words is "one hundred fifty-nine million, eight hundred eighty-seven thousand, five hundred forty-three".