180469229 has 16 divisors (see below), whose sum is σ = 194079600. Its totient is φ = 167795712.

The previous prime is 180469207. The next prime is 180469241. The reversal of 180469229 is 922964081.

It can be written as a sum of positive squares in 8 ways, for example, as 184900 + 180284329 = 430^2 + 13427^2 .

It is a de Polignac number, because none of the positive numbers 2^k-180469229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180469279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535349 + ... + 535685.

It is an arithmetic number, because the mean of its divisors is an integer number (12129975).

Almost surely, 2^180469229 is an apocalyptic number.

It is an amenable number.

180469229 is a deficient number, since it is larger than the sum of its proper divisors (13610371).

180469229 is an equidigital number, since it uses as much as digits as its factorization.

180469229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 180469229 is about 13433.8836156936. The cubic root of 180469229 is about 565.1118153931. Note that the first 3 decimals are identical.

The spelling of 180469229 in words is "one hundred eighty million, four hundred sixty-nine thousand, two hundred twenty-nine".