159881863 has 2 divisors, whose sum is σ = 159881864. Its totient is φ = 159881862.

The previous prime is 159881833. The next prime is 159881879. The reversal of 159881863 is 368188951.

159881863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159881863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159881833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79940931 + 79940932.

It is an arithmetic number, because the mean of its divisors is an integer number (79940932).

Almost surely, 2^159881863 is an apocalyptic number.

159881863 is a deficient number, since it is larger than the sum of its proper divisors (1).

159881863 is an equidigital number, since it uses as much as digits as its factorization.

159881863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 49.

The square root of 159881863 is about 12644.4400034165. The cubic root of 159881863 is about 542.7498766065.

The spelling of 159881863 in words is "one hundred fifty-nine million, eight hundred eighty-one thousand, eight hundred sixty-three".