180436045 has 8 divisors (see below), whose sum is σ = 229260024. Its totient is φ = 135857664.

The previous prime is 180436033. The next prime is 180436051. The reversal of 180436045 is 540634081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9715689 + 170720356 = 3117^2 + 13066^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 180436045 - 2¹¹ = 180433997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180435998 and 180436016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061304 + ... + 1061473.

It is an arithmetic number, because the mean of its divisors is an integer number (28657503).

Almost surely, 2^180436045 is an apocalyptic number.

It is an amenable number.

180436045 is a deficient number, since it is larger than the sum of its proper divisors (48823979).

180436045 is a wasteful number, since it uses less digits than its factorization.

180436045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122799.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 180436045 is about 13432.6484730302. The cubic root of 180436045 is about 565.0771763947.

The spelling of 180436045 in words is "one hundred eighty million, four hundred thirty-six thousand, forty-five".