18127316 has 6 divisors (see below), whose sum is σ = 31722810. Its totient is φ = 9063656.

The previous prime is 18127313. The next prime is 18127327. The reversal of 18127316 is 61372181.

It can be written as a sum of positive squares in only one way, i.e., 9947716 + 8179600 = 3154^2 + 2860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18127313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265911 + ... + 2265918.

It is an arithmetic number, because the mean of its divisors is an integer number (5287135).

Almost surely, 2^18127316 is an apocalyptic number.

It is an amenable number.

18127316 is a deficient number, since it is larger than the sum of its proper divisors (13595494).

18127316 is a wasteful number, since it uses less digits than its factorization.

18127316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531833 (or 4531831 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 18127316 is about 4257.6185831988. The cubic root of 18127316 is about 262.6905814787.

Adding to 18127316 its reverse (61372181), we get a palindrome (79499497).

The spelling of 18127316 in words is "eighteen million, one hundred twenty-seven thousand, three hundred sixteen".