18127122 has 32 divisors (see below), whose sum is σ = 39221952. Its totient is φ = 5552064.

The previous prime is 18127111. The next prime is 18127127. The reversal of 18127122 is 22172181.

It is a junction number, because it is equal to n+sod(n) for n = 18127092 and 18127101.

It is not an unprimeable number, because it can be changed into a prime (18127127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23568 + ... + 24324.

It is an arithmetic number, because the mean of its divisors is an integer number (1225686).

Almost surely, 2^18127122 is an apocalyptic number.

18127122 is an abundant number, since it is smaller than the sum of its proper divisors (21094830).

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

18127122 is a wasteful number, since it uses less digits than its factorization.

18127122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082.

The product of its digits is 448, while the sum is 24.

The square root of 18127122 is about 4257.5958004489. The cubic root of 18127122 is about 262.6896443634.

The spelling of 18127122 in words is "eighteen million, one hundred twenty-seven thousand, one hundred twenty-two".