159420 has 24 divisors (see below), whose sum is σ = 446544. Its totient is φ = 42496.

The previous prime is 159407. The next prime is 159421. The reversal of 159420 is 24951.

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 159420.

It is not an unprimeable number, because it can be changed into a prime (159421) by changing a digit.

159420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (18606).

2¹⁵⁹⁴²⁰ is an apocalyptic number.

159420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159420 is an abundant number, since it is smaller than the sum of its proper divisors (287124).

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

159420 is a wasteful number, since it uses less digits than its factorization.

159420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 159420 is about 399.2743417752. The cubic root of 159420 is about 54.2226744814. Note that the first 3 decimals are identical.

The spelling of 159420 in words is "one hundred fifty-nine thousand, four hundred twenty".