159601000 has 64 divisors (see below), whose sum is σ = 402227280. Its totient is φ = 58924800.

The previous prime is 159600997. The next prime is 159601003. The reversal of 159601000 is 106951.

It is an interprime number because it is at equal distance from previous prime (159600997) and next prime (159601003).

It can be written as a sum of positive squares in 8 ways, for example, as 10614564 + 148986436 = 3258^2 + 12206^2 .

It is not an unprimeable number, because it can be changed into a prime (159601003) 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 15 ways as a sum of consecutive naturals, for example, 6862 + ... + 19138.

Almost surely, 2^159601000 is an apocalyptic number.

159601000 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 159601000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201113640).

159601000 is an abundant number, since it is smaller than the sum of its proper divisors (242626280).

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

159601000 is a wasteful number, since it uses less digits than its factorization.

159601000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311 (or 12297 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 159601000 is about 12633.3289357952. The cubic root of 159601000 is about 542.4318757499.

Adding to 159601000 its reverse (106951), we get a palindrome (159707951).

The spelling of 159601000 in words is "one hundred fifty-nine million, six hundred one thousand".