180159969 has 16 divisors (see below), whose sum is σ = 263010240. Its totient is φ = 108788160.

The previous prime is 180159953. The next prime is 180160009. The reversal of 180159969 is 969951081.

180159969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 180159969 - 2⁴ = 180159953 is a prime.

It is a super-2 number, since 2×180159969² = 64915228860161922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (180159949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714 + ... + 18995.

It is an arithmetic number, because the mean of its divisors is an integer number (16438140).

Almost surely, 2^180159969 is an apocalyptic number.

It is an amenable number.

180159969 is a deficient number, since it is larger than the sum of its proper divisors (82850271).

180159969 is a wasteful number, since it uses less digits than its factorization.

180159969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 180159969 is about 13422.3682336613. The cubic root of 180159969 is about 564.7888306839.

The spelling of 180159969 in words is "one hundred eighty million, one hundred fifty-nine thousand, nine hundred sixty-nine".