159421056 has 32 divisors (see below), whose sum is σ = 423463200. Its totient is φ = 53140224.

The previous prime is 159421037. The next prime is 159421099. The reversal of 159421056 is 650124951.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 207196 + ... + 207963.

It is an arithmetic number, because the mean of its divisors is an integer number (13233225).

Almost surely, 2^159421056 is an apocalyptic number.

159421056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

159421056 is an abundant number, since it is smaller than the sum of its proper divisors (264042144).

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

159421056 is an equidigital number, since it uses as much as digits as its factorization.

159421056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415176 (or 415164 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 159421056 is about 12626.2051306004. The cubic root of 159421056 is about 542.2279420500.

The spelling of 159421056 in words is "one hundred fifty-nine million, four hundred twenty-one thousand, fifty-six".