2018156 has 12 divisors (see below), whose sum is σ = 4036368. Its totient is φ = 864912.

The previous prime is 2018153. The next prime is 2018167. The reversal of 2018156 is 6518102.

2018156 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2018153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36011 + ... + 36066.

It is an arithmetic number, because the mean of its divisors is an integer number (336364).

2^2018156 is an apocalyptic number.

It is an amenable number.

2018156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2018156 is a wasteful number, since it uses less digits than its factorization.

2018156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72088 (or 72086 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2018156 is about 1420.6181753026. The cubic root of 2018156 is about 126.3722092137.

The spelling of 2018156 in words is "two million, eighteen thousand, one hundred fifty-six".