159898 has 8 divisors (see below), whose sum is σ = 247680. Its totient is φ = 77340.

The previous prime is 159871. The next prime is 159899. The reversal of 159898 is 898951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 159898.

It is not an unprimeable number, because it can be changed into a prime (159899) 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, 1228 + ... + 1351.

It is an arithmetic number, because the mean of its divisors is an integer number (30960).

2¹⁵⁹⁸⁹⁸ is an apocalyptic number.

159898 is a deficient number, since it is larger than the sum of its proper divisors (87782).

159898 is a wasteful number, since it uses less digits than its factorization.

159898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its digits is 25920, while the sum is 40.

The square root of 159898 is about 399.8724796732. The cubic root of 159898 is about 54.2768136047.

The spelling of 159898 in words is "one hundred fifty-nine thousand, eight hundred ninety-eight".