159491648 has 28 divisors (see below), whose sum is σ = 327408540. Its totient is φ = 76995072.

The previous prime is 159491627. The next prime is 159491659. The reversal of 159491648 is 846194951.

It can be written as a sum of positive squares in 2 ways, for example, as 92775424 + 66716224 = 9632^2 + 8168^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41111 + ... + 44822.

Almost surely, 2^159491648 is an apocalyptic number.

It is an amenable number.

159491648 is an abundant number, since it is smaller than the sum of its proper divisors (167916892).

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

159491648 is an equidigital number, since it uses as much as digits as its factorization.

159491648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85974 (or 85964 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 159491648 is about 12629.0002771399. Note that the first 3 decimals coincide. The cubic root of 159491648 is about 542.3079634883.

The spelling of 159491648 in words is "one hundred fifty-nine million, four hundred ninety-one thousand, six hundred forty-eight".