18822115 has 16 divisors (see below), whose sum is σ = 25111296. Its totient is φ = 13449600.

The previous prime is 18822091. The next prime is 18822143. The reversal of 18822115 is 51122881.

It is not a de Polignac number, because 18822115 - 2¹⁹ = 18297827 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2656 + ... + 6685.

It is an arithmetic number, because the mean of its divisors is an integer number (1569456).

Almost surely, 2^18822115 is an apocalyptic number.

18822115 is a deficient number, since it is larger than the sum of its proper divisors (6289181).

18822115 is a wasteful number, since it uses less digits than its factorization.

18822115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

The product of its digits is 1280, while the sum is 28.

The square root of 18822115 is about 4338.4461504092. The cubic root of 18822115 is about 266.0048004485.

Adding to 18822115 its reverse (51122881), we get a palindrome (69944996).

The spelling of 18822115 in words is "eighteen million, eight hundred twenty-two thousand, one hundred fifteen".