180145229282 has 54 divisors (see below), whose sum is σ = 285624555489. Its totient is φ = 85210354320.

The previous prime is 180145229269. The next prime is 180145229309. The reversal of 180145229282 is 282922541081.

It can be written as a sum of positive squares in 2 ways, for example, as 180038127481 + 107101801 = 424309^2 + 10349^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=300121.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1375154357 + ... + 1375154487.

Almost surely, 2^180145229282 is an apocalyptic number.

180145229282 is a deficient number, since it is larger than the sum of its proper divisors (105479326207).

180145229282 is an frugal number, since it uses more digits than its factorization.

180145229282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 180145229282 in words is "one hundred eighty billion, one hundred forty-five million, two hundred twenty-nine thousand, two hundred eighty-two".