159197 has 4 divisors (see below), whose sum is σ = 159996. Its totient is φ = 158400.

The previous prime is 159193. The next prime is 159199. The reversal of 159197 is 791951.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 19321 = 374^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 159197 - 2² = 159193 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 159197.

It is not an unprimeable number, because it can be changed into a prime (159191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197 + ... + 597.

It is an arithmetic number, because the mean of its divisors is an integer number (39999).

2¹⁵⁹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

159197 is a deficient number, since it is larger than the sum of its proper divisors (799).

159197 is an equidigital number, since it uses as much as digits as its factorization.

159197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798.

The product of its digits is 2835, while the sum is 32.

The square root of 159197 is about 398.9949874372. The cubic root of 159197 is about 54.1973800833.

The spelling of 159197 in words is "one hundred fifty-nine thousand, one hundred ninety-seven".