159473844 has 18 divisors (see below), whose sum is σ = 403114530. Its totient is φ = 53157936.

The previous prime is 159473843. The next prime is 159473857. The reversal of 159473844 is 448374951.

It can be written as a sum of positive squares in only one way, i.e., 158004900 + 1468944 = 12570^2 + 1212^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 159473844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159473843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2214879 + ... + 2214950.

Almost surely, 2^159473844 is an apocalyptic number.

It is an amenable number.

159473844 is an abundant number, since it is smaller than the sum of its proper divisors (243640686).

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

159473844 is a wasteful number, since it uses less digits than its factorization.

159473844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429839 (or 4429834 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 159473844 is about 12628.2953719019. The cubic root of 159473844 is about 542.2877835177.

It can be divided in two parts, 15947 and 3844, that added together give a palindrome (19791).

The spelling of 159473844 in words is "one hundred fifty-nine million, four hundred seventy-three thousand, eight hundred forty-four".