180809027 has 4 divisors (see below), whose sum is σ = 206638896. Its totient is φ = 154979160.

The previous prime is 180809021. The next prime is 180809029. The reversal of 180809027 is 720908081.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 180809027 - 2¹⁴ = 180792643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180809021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12914924 + ... + 12914937.

It is an arithmetic number, because the mean of its divisors is an integer number (51659724).

Almost surely, 2^180809027 is an apocalyptic number.

180809027 is a deficient number, since it is larger than the sum of its proper divisors (25829869).

180809027 is an equidigital number, since it uses as much as digits as its factorization.

180809027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25829868.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 180809027 is about 13446.5247183055. The cubic root of 180809027 is about 565.4662681968.

The spelling of 180809027 in words is "one hundred eighty million, eight hundred nine thousand, twenty-seven".