159549478 has 12 divisors (see below), whose sum is σ = 261177948. Its totient is φ = 72495560.

The previous prime is 159549431. The next prime is 159549521. The reversal of 159549478 is 874945951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57900 + ... + 60592.

It is an arithmetic number, because the mean of its divisors is an integer number (21764829).

Almost surely, 2^159549478 is an apocalyptic number.

159549478 is a deficient number, since it is larger than the sum of its proper divisors (101628470).

159549478 is an frugal number, since it uses more digits than its factorization.

159549478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399 (or 2706 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 159549478 is about 12631.2896412045. The cubic root of 159549478 is about 542.3735006292.

The spelling of 159549478 in words is "one hundred fifty-nine million, five hundred forty-nine thousand, four hundred seventy-eight".