180222015 has 16 divisors (see below), whose sum is σ = 305317728. Its totient is φ = 90464256.

The previous prime is 180222001. The next prime is 180222047. The reversal of 180222015 is 510222081.

It is a happy number.

It is not a de Polignac number, because 180222015 - 2⁵ = 180221983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180221982 and 180222000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353122 + ... + 353631.

It is an arithmetic number, because the mean of its divisors is an integer number (19082358).

Almost surely, 2^180222015 is an apocalyptic number.

180222015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

180222015 is a deficient number, since it is larger than the sum of its proper divisors (125095713).

180222015 is a wasteful number, since it uses less digits than its factorization.

180222015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706778.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 180222015 is about 13424.6793257791. The cubic root of 180222015 is about 564.8536598574.

Adding to 180222015 its reverse (510222081), we get a palindrome (690444096).

The spelling of 180222015 in words is "one hundred eighty million, two hundred twenty-two thousand, fifteen".