159477844 has 48 divisors (see below), whose sum is σ = 301165200. Its totient is φ = 73737216.

The previous prime is 159477827. The next prime is 159477847. The reversal of 159477844 is 448774951.

It can be written as a sum of positive squares in 8 ways, for example, as 29289744 + 130188100 = 5412^2 + 11410^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159477847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313062 + ... + 313570.

It is an arithmetic number, because the mean of its divisors is an integer number (6274275).

Almost surely, 2^159477844 is an apocalyptic number.

It is an amenable number.

159477844 is a deficient number, since it is larger than the sum of its proper divisors (141687356).

159477844 is a wasteful number, since it uses less digits than its factorization.

159477844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 650 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 159477844 is about 12628.4537454116. The cubic root of 159477844 is about 542.2923174545.

The spelling of 159477844 in words is "one hundred fifty-nine million, four hundred seventy-seven thousand, eight hundred forty-four".