180037985 has 8 divisors (see below), whose sum is σ = 217240296. Its totient is φ = 143233920.

The previous prime is 180037909. The next prime is 180037999. The reversal of 180037985 is 589730081.

It is a happy number.

180037985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 719104 + 179318881 = 848^2 + 13391^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-180037985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98564 + ... + 100373.

It is an arithmetic number, because the mean of its divisors is an integer number (27155037).

Almost surely, 2^180037985 is an apocalyptic number.

It is an amenable number.

180037985 is a deficient number, since it is larger than the sum of its proper divisors (37202311).

180037985 is a wasteful number, since it uses less digits than its factorization.

180037985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199123.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 180037985 is about 13417.8234076917. The cubic root of 180037985 is about 564.6613314835.

The spelling of 180037985 in words is "one hundred eighty million, thirty-seven thousand, nine hundred eighty-five".