159890 has 16 divisors (see below), whose sum is σ = 293760. Its totient is φ = 62640.

The previous prime is 159871. The next prime is 159899. The reversal of 159890 is 98951.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 159890.

It is not an unprimeable number, because it can be changed into a prime (159899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (18360).

2¹⁵⁹⁸⁹⁰ is an apocalyptic number.

159890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159890 is a deficient number, since it is larger than the sum of its proper divisors (133870).

159890 is a wasteful number, since it uses less digits than its factorization.

159890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 159890 is about 399.8624763591. The cubic root of 159890 is about 54.2759083990.

The spelling of 159890 in words is "one hundred fifty-nine thousand, eight hundred ninety".