159678 has 16 divisors (see below), whose sum is σ = 354960. Its totient is φ = 53208.

The previous prime is 159673. The next prime is 159683. The reversal of 159678 is 876951.

It is an interprime number because it is at equal distance from previous prime (159673) and next prime (159683).

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159671) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1425 + ... + 1532.

It is an arithmetic number, because the mean of its divisors is an integer number (22185).

2¹⁵⁹⁶⁷⁸ is an apocalyptic number.

159678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

159678 is an abundant number, since it is smaller than the sum of its proper divisors (195282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159678 is a wasteful number, since it uses less digits than its factorization.

159678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2962 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 159678 is about 399.5972972882. The cubic root of 159678 is about 54.2519094375.

The spelling of 159678 in words is "one hundred fifty-nine thousand, six hundred seventy-eight".