180054217 has 4 divisors (see below), whose sum is σ = 205776256. Its totient is φ = 154332180.

The previous prime is 180054179. The next prime is 180054221. The reversal of 180054217 is 712450081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 712450081 = 7 ⋅101778583.

It is a cyclic number.

It is not a de Polignac number, because 180054217 - 2¹⁹ = 179529929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (180054817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12861009 + ... + 12861022.

It is an arithmetic number, because the mean of its divisors is an integer number (51444064).

Almost surely, 2^180054217 is an apocalyptic number.

It is an amenable number.

180054217 is a deficient number, since it is larger than the sum of its proper divisors (25722039).

180054217 is an equidigital number, since it uses as much as digits as its factorization.

180054217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25722038.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 180054217 is about 13418.4282611638. The cubic root of 180054217 is about 564.6783006939.

It can be divided in two parts, 18005 and 4217, that added together give a palindrome (22222).

The spelling of 180054217 in words is "one hundred eighty million, fifty-four thousand, two hundred seventeen".