180585047 has 4 divisors (see below), whose sum is σ = 181884360. Its totient is φ = 179285736.

The previous prime is 180585023. The next prime is 180585089. The reversal of 180585047 is 740585081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 180585047 - 2⁸ = 180584791 is a prime.

It is a super-2 number, since 2×180585047² = 65221918399984418, which contains 22 as substring.

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 180585047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180585007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 649448 + ... + 649725.

It is an arithmetic number, because the mean of its divisors is an integer number (45471090).

Almost surely, 2^180585047 is an apocalyptic number.

180585047 is a deficient number, since it is larger than the sum of its proper divisors (1299313).

180585047 is a wasteful number, since it uses less digits than its factorization.

180585047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299312.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 180585047 is about 13438.1935914021. The cubic root of 180585047 is about 565.2326783318.

The spelling of 180585047 in words is "one hundred eighty million, five hundred eighty-five thousand, forty-seven".