180864563 has 8 divisors (see below), whose sum is σ = 197443440. Its totient is φ = 164308480.

The previous prime is 180864539. The next prime is 180864583. The reversal of 180864563 is 365468081.

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 180864563 - 2¹⁴ = 180848179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 180864563.

It is not an unprimeable number, because it can be changed into a prime (180864583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13823 + ... + 23511.

It is an arithmetic number, because the mean of its divisors is an integer number (24680430).

Almost surely, 2^180864563 is an apocalyptic number.

180864563 is a deficient number, since it is larger than the sum of its proper divisors (16578877).

180864563 is a wasteful number, since it uses less digits than its factorization.

180864563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11397.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 180864563 is about 13448.5896286562. The cubic root of 180864563 is about 565.5241571207.

The spelling of 180864563 in words is "one hundred eighty million, eight hundred sixty-four thousand, five hundred sixty-three".