180312016 has 10 divisors (see below), whose sum is σ = 349354562. Its totient is φ = 90156000.

The previous prime is 180312001. The next prime is 180312017. The reversal of 180312016 is 610213081.

It can be written as a sum of positive squares in only one way, i.e., 106007616 + 74304400 = 10296^2 + 8620^2 .

It is a super-2 number, since 2×180312016² = 65024846227968512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180312017) 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 as a sum of consecutive naturals, namely, 5634735 + ... + 5634766.

Almost surely, 2^180312016 is an apocalyptic number.

180312016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

180312016 is a deficient number, since it is larger than the sum of its proper divisors (169042546).

180312016 is a wasteful number, since it uses less digits than its factorization.

180312016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269509 (or 11269503 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 180312016 is about 13428.0309800060. The cubic root of 180312016 is about 564.9476715575.

Adding to 180312016 its reverse (610213081), we get a palindrome (790525097).

The spelling of 180312016 in words is "one hundred eighty million, three hundred twelve thousand, sixteen".