159797117 has 16 divisors (see below), whose sum is σ = 167311872. Its totient is φ = 152487360.

The previous prime is 159797111. The next prime is 159797137. The reversal of 159797117 is 711797951.

It is not a de Polignac number, because 159797117 - 2⁴ = 159797101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159797111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716468 + ... + 716690.

It is an arithmetic number, because the mean of its divisors is an integer number (10456992).

Almost surely, 2^159797117 is an apocalyptic number.

It is an amenable number.

159797117 is a deficient number, since it is larger than the sum of its proper divisors (7514755).

159797117 is a wasteful number, since it uses less digits than its factorization.

159797117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 138915, while the sum is 47.

The square root of 159797117 is about 12641.0884420607. The cubic root of 159797117 is about 542.6539641009.

The spelling of 159797117 in words is "one hundred fifty-nine million, seven hundred ninety-seven thousand, one hundred seventeen".