159597900 has 432 divisors, whose sum is σ = 649958400. Its totient is φ = 32457600.

The previous prime is 159597869. The next prime is 159597901. The reversal of 159597900 is 9795951.

159597900 is a `hidden beast` number, since 1 + 59 + 597 + 9 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (159597901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3395677 + ... + 3395723.

Almost surely, 2^159597900 is an apocalyptic number.

159597900 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 159597900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324979200).

159597900 is an abundant number, since it is smaller than the sum of its proper divisors (490360500).

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

159597900 is a wasteful number, since it uses less digits than its factorization.

159597900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 45.

The square root of 159597900 is about 12633.2062438638. The cubic root of 159597900 is about 542.4283637633.

The spelling of 159597900 in words is "one hundred fifty-nine million, five hundred ninety-seven thousand, nine hundred".