159981201 has 12 divisors (see below), whose sum is σ = 232104912. Its totient is φ = 106182936.

The previous prime is 159981191. The next prime is 159981209. The reversal of 159981201 is 102189951.

It is not a de Polignac number, because 159981201 - 2¹⁸ = 159719057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159981209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37111 + ... + 41196.

It is an arithmetic number, because the mean of its divisors is an integer number (19342076).

Almost surely, 2^159981201 is an apocalyptic number.

It is an amenable number.

159981201 is a deficient number, since it is larger than the sum of its proper divisors (72123711).

159981201 is a wasteful number, since it uses less digits than its factorization.

159981201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78540 (or 78537 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 159981201 is about 12648.3675231233. The cubic root of 159981201 is about 542.8622606792.

The spelling of 159981201 in words is "one hundred fifty-nine million, nine hundred eighty-one thousand, two hundred one".