180205227 has 12 divisors (see below), whose sum is σ = 262730520. Its totient is φ = 119013408.

The previous prime is 180205213. The next prime is 180205243. The reversal of 180205227 is 722502081.

It is not a de Polignac number, because 180205227 - 2⁴ = 180205211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180205227.

It is not an unprimeable number, because it can be changed into a prime (180205297) 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, 92602 + ... + 94527.

It is an arithmetic number, because the mean of its divisors is an integer number (21894210).

Almost surely, 2^180205227 is an apocalyptic number.

180205227 is a deficient number, since it is larger than the sum of its proper divisors (82525293).

180205227 is a wasteful number, since it uses less digits than its factorization.

180205227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187242 (or 187239 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 180205227 is about 13424.0540448852. The cubic root of 180205227 is about 564.8361202731.

The spelling of 180205227 in words is "one hundred eighty million, two hundred five thousand, two hundred twenty-seven".