159990799 has 2 divisors, whose sum is σ = 159990800. Its totient is φ = 159990798.

The previous prime is 159990797. The next prime is 159990821. The reversal of 159990799 is 997099951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159990799 - 2¹ = 159990797 is a prime.

Together with 159990797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159990793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79995399 + 79995400.

It is an arithmetic number, because the mean of its divisors is an integer number (79995400).

Almost surely, 2^159990799 is an apocalyptic number.

159990799 is a deficient number, since it is larger than the sum of its proper divisors (1).

159990799 is an equidigital number, since it uses as much as digits as its factorization.

159990799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2066715, while the sum is 58.

The square root of 159990799 is about 12648.7469339852. The cubic root of 159990799 is about 542.8731167210.

The spelling of 159990799 in words is "one hundred fifty-nine million, nine hundred ninety thousand, seven hundred ninety-nine".