159986279 has 2 divisors, whose sum is σ = 159986280. Its totient is φ = 159986278.

The previous prime is 159986237. The next prime is 159986287. The reversal of 159986279 is 972689951.

It is a strong prime.

It is an emirp because it is prime and its reverse (972689951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159986279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159986219) 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, 79993139 + 79993140.

It is an arithmetic number, because the mean of its divisors is an integer number (79993140).

Almost surely, 2^159986279 is an apocalyptic number.

159986279 is a deficient number, since it is larger than the sum of its proper divisors (1).

159986279 is an equidigital number, since it uses as much as digits as its factorization.

159986279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 56.

The square root of 159986279 is about 12648.5682588979. The cubic root of 159986279 is about 542.8680043236.

It can be divided in two parts, 1599 and 86279, that added together give a palindrome (87878).

The spelling of 159986279 in words is "one hundred fifty-nine million, nine hundred eighty-six thousand, two hundred seventy-nine".