180214189 has 2 divisors, whose sum is σ = 180214190. Its totient is φ = 180214188.

The previous prime is 180214171. The next prime is 180214193. The reversal of 180214189 is 981412081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178008964 + 2205225 = 13342^2 + 1485^2 .

It is a cyclic number.

It is not a de Polignac number, because 180214189 - 2⁷ = 180214061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180214109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90107094 + 90107095.

It is an arithmetic number, because the mean of its divisors is an integer number (90107095).

Almost surely, 2^180214189 is an apocalyptic number.

It is an amenable number.

180214189 is a deficient number, since it is larger than the sum of its proper divisors (1).

180214189 is an equidigital number, since it uses as much as digits as its factorization.

180214189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 180214189 is about 13424.3878445164. The cubic root of 180214189 is about 564.8454836297.

It can be divided in two parts, 180 and 214189, that added together give a square (214369 = 463²).

The spelling of 180214189 in words is "one hundred eighty million, two hundred fourteen thousand, one hundred eighty-nine".