218045148 has 12 divisors (see below), whose sum is σ = 508772040. Its totient is φ = 72681712.

The previous prime is 218045141. The next prime is 218045167. The reversal of 218045148 is 841540812.

218045148 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218045141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9085203 + ... + 9085226.

It is an arithmetic number, because the mean of its divisors is an integer number (42397670).

Almost surely, 2^218045148 is an apocalyptic number.

It is an amenable number.

218045148 is an abundant number, since it is smaller than the sum of its proper divisors (290726892).

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

218045148 is a wasteful number, since it uses less digits than its factorization.

218045148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18170436 (or 18170434 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 218045148 is about 14766.3518852830. The cubic root of 218045148 is about 601.8877102438.

The spelling of 218045148 in words is "two hundred eighteen million, forty-five thousand, one hundred forty-eight".