180225018 has 12 divisors (see below), whose sum is σ = 390487578. Its totient is φ = 60075000.

The previous prime is 180225011. The next prime is 180225029. The reversal of 180225018 is 810522081.

It can be written as a sum of positive squares in only one way, i.e., 167883849 + 12341169 = 12957^2 + 3513^2 .

It is a super-2 number, since 2×180225018² = 64962114226200648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180224982 and 180225000.

It is not an unprimeable number, because it can be changed into a prime (180225011) 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, 5006233 + ... + 5006268.

Almost surely, 2^180225018 is an apocalyptic number.

180225018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180225018 is an abundant number, since it is smaller than the sum of its proper divisors (210262560).

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

180225018 is a wasteful number, since it uses less digits than its factorization.

180225018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012509 (or 10012506 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 180225018 is about 13424.7911715602. The cubic root of 180225018 is about 564.8567971843.

Adding to 180225018 its reverse (810522081), we get a palindrome (990747099).

The spelling of 180225018 in words is "one hundred eighty million, two hundred twenty-five thousand, eighteen".