159697272 has 96 divisors (see below), whose sum is σ = 467240400. Its totient is φ = 45351936.

The previous prime is 159697243. The next prime is 159697273. The reversal of 159697272 is 272796951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159697273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269008 + ... + 269600.

Almost surely, 2^159697272 is an apocalyptic number.

159697272 is a gapful number since it is divisible by the number (12) 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 159697272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233620200).

159697272 is an abundant number, since it is smaller than the sum of its proper divisors (307543128).

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

159697272 is a wasteful number, since it uses less digits than its factorization.

159697272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 834 counting only the distinct ones).

The product of its digits is 476280, while the sum is 48.

The square root of 159697272 is about 12637.1386001737. The cubic root of 159697272 is about 542.5409195635.

The spelling of 159697272 in words is "one hundred fifty-nine million, six hundred ninety-seven thousand, two hundred seventy-two".