18162027 has 12 divisors (see below), whose sum is σ = 28252224. Its totient is φ = 11176560.

The previous prime is 18162007. The next prime is 18162031. The reversal of 18162027 is 72026181.

18162027 is a `hidden beast` number, since 18 + 1 + 620 + 27 = 666.

It is not a de Polignac number, because 18162027 - 2⁸ = 18161771 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18162007) 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 in 11 ways as a sum of consecutive naturals, for example, 77499 + ... + 77732.

It is an arithmetic number, because the mean of its divisors is an integer number (2354352).

Almost surely, 2^18162027 is an apocalyptic number.

18162027 is a deficient number, since it is larger than the sum of its proper divisors (10090197).

18162027 is a wasteful number, since it uses less digits than its factorization.

18162027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155250 (or 155247 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 18162027 is about 4261.6929734555. The cubic root of 18162027 is about 262.8581451516.

The spelling of 18162027 in words is "eighteen million, one hundred sixty-two thousand, twenty-seven".