180085557 has 8 divisors (see below), whose sum is σ = 240182176. Its totient is φ = 120022992.

The previous prime is 180085517. The next prime is 180085567. The reversal of 180085557 is 755580081.

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

It is not a de Polignac number, because 180085557 - 2⁷ = 180085429 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 (180085517) 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 7 ways as a sum of consecutive naturals, for example, 8943 + ... + 20979.

It is an arithmetic number, because the mean of its divisors is an integer number (30022772).

Almost surely, 2^180085557 is an apocalyptic number.

It is an amenable number.

180085557 is a deficient number, since it is larger than the sum of its proper divisors (60096619).

180085557 is a wasteful number, since it uses less digits than its factorization.

180085557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17027.

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 180085557 is about 13419.5960073320. The cubic root of 180085557 is about 564.7110611804.

The spelling of 180085557 in words is "one hundred eighty million, eighty-five thousand, five hundred fifty-seven".