159491280 has 320 divisors, whose sum is σ = 587962368. Its totient is φ = 35389440.

The previous prime is 159491279. The next prime is 159491291. The reversal of 159491280 is 82194951.

It is a super-3 number, since 3×159491280³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1644192 + ... + 1644288.

Almost surely, 2^159491280 is an apocalyptic number.

159491280 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 159491280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293981184).

159491280 is an abundant number, since it is smaller than the sum of its proper divisors (428471088).

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

159491280 is a wasteful number, since it uses less digits than its factorization.

159491280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 159491280 is about 12628.9857074905. The cubic root of 159491280 is about 542.3075463933.

The spelling of 159491280 in words is "one hundred fifty-nine million, four hundred ninety-one thousand, two hundred eighty".