159278438 has 16 divisors (see below), whose sum is σ = 260941824. Its totient is φ = 72314760.

The previous prime is 159278429. The next prime is 159278453. The reversal of 159278438 is 834872951.

It is a happy number.

159278438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 159278392 and 159278401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17531 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (16308864).

Almost surely, 2^159278438 is an apocalyptic number.

159278438 is a deficient number, since it is larger than the sum of its proper divisors (101663386).

159278438 is a wasteful number, since it uses less digits than its factorization.

159278438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467.

The product of its digits is 483840, while the sum is 47.

The square root of 159278438 is about 12620.5561684103. The cubic root of 159278438 is about 542.0662015241.

The spelling of 159278438 in words is "one hundred fifty-nine million, two hundred seventy-eight thousand, four hundred thirty-eight".