180836169 has 8 divisors (see below), whose sum is σ = 241269600. Its totient is φ = 120480096.

The previous prime is 180836153. The next prime is 180836171. The reversal of 180836169 is 961638081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180836169 - 2⁴ = 180836153 is a prime.

It is a super-2 number, since 2×180836169² = 65403440037193122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 180836169.

It is not an unprimeable number, because it can be changed into a prime (180836179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13644 + ... + 23405.

It is an arithmetic number, because the mean of its divisors is an integer number (30158700).

Almost surely, 2^180836169 is an apocalyptic number.

It is an amenable number.

180836169 is a deficient number, since it is larger than the sum of its proper divisors (60433431).

180836169 is a wasteful number, since it uses less digits than its factorization.

180836169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38679.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 180836169 is about 13447.5339374920. The cubic root of 180836169 is about 565.4945616174.

The spelling of 180836169 in words is "one hundred eighty million, eight hundred thirty-six thousand, one hundred sixty-nine".