159491520 has 168 divisors, whose sum is σ = 556320960. Its totient is φ = 41932800.

The previous prime is 159491473. The next prime is 159491551. The reversal of 159491520 is 25194951.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227170 + ... + 227870.

Almost surely, 2^159491520 is an apocalyptic number.

159491520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159491520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278160480).

159491520 is an abundant number, since it is smaller than the sum of its proper divisors (396829440).

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

159491520 is a wasteful number, since it uses less digits than its factorization.

159491520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 159491520 is about 12628.9952094377. The cubic root of 159491520 is about 542.3078184118.

The spelling of 159491520 in words is "one hundred fifty-nine million, four hundred ninety-one thousand, five hundred twenty".