180351018 has 12 divisors (see below), whose sum is σ = 390760578. Its totient is φ = 60117000.

The previous prime is 180351013. The next prime is 180351019. The reversal of 180351018 is 810153081.

It can be written as a sum of positive squares in only one way, i.e., 131951169 + 48399849 = 11487^2 + 6957^2 .

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 180350982 and 180351000.

It is not an unprimeable number, because it can be changed into a prime (180351013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5009733 + ... + 5009768.

Almost surely, 2^180351018 is an apocalyptic number.

180351018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180351018 is an abundant number, since it is smaller than the sum of its proper divisors (210409560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180351018 is a wasteful number, since it uses less digits than its factorization.

180351018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019509 (or 10019506 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 180351018 is about 13429.4831620580. The cubic root of 180351018 is about 564.9884018816.

The spelling of 180351018 in words is "one hundred eighty million, three hundred fifty-one thousand, eighteen".