159806995 has 4 divisors (see below), whose sum is σ = 191768400. Its totient is φ = 127845592.

The previous prime is 159806989. The next prime is 159807029. The reversal of 159806995 is 599608951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 599608951 = 1117 ⋅536803.

It is a cyclic number.

It is not a de Polignac number, because 159806995 - 2¹⁵ = 159774227 is a prime.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 15980695 + ... + 15980704.

It is an arithmetic number, because the mean of its divisors is an integer number (47942100).

Almost surely, 2^159806995 is an apocalyptic number.

159806995 is a deficient number, since it is larger than the sum of its proper divisors (31961405).

159806995 is an equidigital number, since it uses as much as digits as its factorization.

159806995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31961404.

The product of its (nonzero) digits is 874800, while the sum is 52.

The square root of 159806995 is about 12641.4791460493. The cubic root of 159806995 is about 542.6651454153.

It can be divided in two parts, 159806 and 995, that added together give a square (160801 = 401²).

The spelling of 159806995 in words is "one hundred fifty-nine million, eight hundred six thousand, nine hundred ninety-five".