180150085 has 4 divisors (see below), whose sum is σ = 216180108. Its totient is φ = 144120064.

The previous prime is 180150079. The next prime is 180150109. The reversal of 180150085 is 580051081.

It is a Cunningham number, because it is equal to 13422²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580051081 = 4649 ⋅124769.

It can be written as a sum of positive squares in 2 ways, for example, as 64866916 + 115283169 = 8054^2 + 10737^2 .

It is a cyclic number.

It is not a de Polignac number, because 180150085 - 2²⁵ = 146595653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18015004 + ... + 18015013.

It is an arithmetic number, because the mean of its divisors is an integer number (54045027).

Almost surely, 2^180150085 is an apocalyptic number.

It is an amenable number.

180150085 is a deficient number, since it is larger than the sum of its proper divisors (36030023).

180150085 is an equidigital number, since it uses as much as digits as its factorization.

180150085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36030022.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 180150085 is about 13422.0000372523. Note that the first 4 decimals coincide. The cubic root of 180150085 is about 564.7785019467.

The spelling of 180150085 in words is "one hundred eighty million, one hundred fifty thousand, eighty-five".