159128101 has 16 divisors (see below), whose sum is σ = 179340480. Its totient is φ = 139950720.

The previous prime is 159128089. The next prime is 159128107. The reversal of 159128101 is 101821951.

It is a cyclic number.

It is not a de Polignac number, because 159128101 - 2¹¹ = 159126053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159128101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159128107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40690 + ... + 44428.

It is an arithmetic number, because the mean of its divisors is an integer number (11208780).

Almost surely, 2^159128101 is an apocalyptic number.

159128101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

159128101 is a deficient number, since it is larger than the sum of its proper divisors (20212379).

159128101 is a wasteful number, since it uses less digits than its factorization.

159128101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876.

The product of its (nonzero) digits is 720, while the sum is 28.

The square root of 159128101 is about 12614.5987252865. The cubic root of 159128101 is about 541.8956024560.

It can be divided in two parts, 1591 and 28101, that added together give a palindrome (29692).

The spelling of 159128101 in words is "one hundred fifty-nine million, one hundred twenty-eight thousand, one hundred one".